Cisco WS-X4748-UPOE+E Full Official Technical Specification Document

1. Product Overview

Official Full Designation

Cisco WS-X4748-UPOE+E is theCatalyst 4500E Series 48-Port Line-Rate Gigabit RJ45 Universal PoE (UPOE) Hot-Swappable Line Card, a Generation 47 high-performance copper PoE line card exclusively built for Catalyst 4500E-series modular chassis, only operable with E-series supervisor engines. It delivers wire-speed 10/100/1000BASE-T copper switching with Universal PoE power delivery, native hardware IEEE 802.1AE MACsec link encryption and Cisco TrustSec identity tagging, optimized for enterprise campus access layer wiring closet deployments, IP phone aggregation, high-power Wi-Fi 6/6E access points, PTZ surveillance cameras, and thin-client VDI endpoint power and data transport.

Core Definition: Single-slot hot-swappable Catalyst 4500E line card equipped with 48 independent 10/100/1000BASE-T RJ45 ports, providing 48 Gbps non-blocking per-slot switching capacity with true 1:1 line-rate forwarding across all ports simultaneously. It supports full UPOE (60W per port), backward compatible with IEEE 802.3at PoE+ (30W) and IEEE 802.3af PoE (15.4W), hardware MACsec fiber/copper link encryption, Cisco TrustSec hardware classification, Energy Efficient Ethernet (802.3az), Layer 2–4 jumbo frames up to 9216 bytes, full hardware QoS scheduling, and complete Layer 2/lightweight Layer 3 feature compatibility for converged voice, video, wireless, and data enterprise networksCisco.

SKU Naming Breakdown

1. WS-X: Cisco modular switch line card / supervisor module product series prefix
2. 47: E-series high-performance enhanced line card family for Catalyst 4500E chassis with native hardware MACsec and TrustSec
3. 48: Total physical port quantity on the card (48 Gigabit RJ45 copper ports)
4. UPOE: Universal Power over Ethernet, delivers up to 60W power output per RJ45 port
5. +E: E-series enhanced hardware architecture;only compatible with Catalyst 4500E chassis and E-series supervisors(incompatible with legacy non-E 4500 chassis/supervisors)

Product Lifecycle Notice

• Official Global Release Year: 2012
• End-of-Sale (EoS) Announcement Date: December 11, 2015; Last Order Date: December 11, 2015
• Minimum Supported IOS XE Version: IOS XE 3.2.0SG / 15.2(1)E and all subsequent maintenance IOS XE releasesCisco
• End of Software Maintenance: No new feature IOS XE releases post-EoS; limited critical security patch support expired
• Final End-of-Support (EoSS) Date: Cisco formal hardware repair and TAC engineering support fully terminated
• Legacy Status: All datasheets, installation guides, IOS XE configuration manuals are archived on Cisco’s legacy networking documentation portal; only third-party refurbished hardware and limited best-effort support are available.

Supported Chassis & Supervisor Compatibility

Compatible Catalyst 4500E Chassis

• WS-C4503-E (3-slot)
• WS-C4506-E (6-slot)
• WS-C4507R-E / WS-C4507R+E (7-slot redundant supervisor)
• WS-C4510R-E / WS-C4510R+E (10-slot redundant supervisor)

Critical Hardware Restriction

This line cardcannot operate with non-E legacy supervisors (WS-X4013, WS-X4013+), even when inserted into E-series chassis; E-series supervisor engines (II-Plus-E, IV-E, V-E, 8-E) are mandatory for normal operationCisco.

Standard Factory Complete Bundle Contents

Each factory-sealed WS-X4748-UPOE+E retail package contains all hardware and accessories required for chassis deployment:

1. WS-X4748-UPOE+E hot-swappable line card module
2. Chassis mounting retention screws for secure slot installation
3. Quick-start hardware installation guide for line card insertion/removal and PoE power configuration
4. Global regulatory compliance, safety, and electromagnetic interference (EMI) certification documentation packet

Supported Software & Enterprise Deployment Architectures

Compatible Cisco IOS Software

WS-X4748-UPOE+E exclusively runs Cisco IOS XE operating system for Catalyst 4500E platforms, minimum release IOS XE 3.2.0SG / 15.2(1)E and all subsequent maintenance IOS XE releases. Classic IOS SG train firmware is not supported on this 47-series E line card; modern standalone IOS-XE switches and Catalyst 9000 series firmware are also incompatibleCisco.

Supported Deployment Architectures

1. Enterprise Campus Access Layer Wiring Closet Aggregation Deployed in 4500E access layer switches to provide high-density copper PoE ports for end-user devices, including Cisco IP phones, enterprise wireless access points, HD surveillance cameras, VDI thin clients, and digital signage endpoints, supporting converged voice, wireless, video, and data traffic with hardware MACsec encryption for secure access layer traffic transport.
2. High-Power Wireless LAN Aggregation UPOE 60W power delivery supports next-generation Wi-Fi 6/6E multi-radio enterprise access points, eliminating separate AC power adapters for wireless infrastructure and simplifying wiring closet power management.
3. Unified Communications Voice Endpoint Aggregation PoE/PoE+/UPOE power delivery for full line of Cisco enterprise IP phones, integrated with CUCM voice VLAN auto-detection and hardware QoS prioritization for VoIP media streams.
4. Converged Security Camera & VDI Endpoint Aggregation 60W UPOE power output supports PTZ HD IP surveillance cameras and power-hungry zero-client VDI workstations, with hardware security features to isolate untrusted edge endpoints from core corporate networks.

Core Integrated Functional Capabilities: 48 Gbps per-slot non-blocking shared switching capacity, true line-rate 48-port 10/100/1000BASE-T forwarding, full UPOE 60W per-port power delivery (simultaneous 30W PoE+ across all 48 ports), hardware Layer 2 switching and assisted Layer 3 IPv4 routing, IEEE 802.1Q VLAN trunking, jumbo frame support up to 9216 bytes, IEEE 802.3az Energy Efficient Ethernet, per-port hardware QoS scheduling with 4 egress queues per port, IGMP v1/v2/v3 hardware snooping, EtherChannel/PAgP/LACP link aggregation, UDLD unidirectional link detection, broadcast/multicast storm control, private VLANs, hardware IEEE 802.1AE MACsec copper link encryption, Cisco TrustSec hardware classification, hot-swappable module design, and full interoperability with Catalyst 4500E unified communications and enterprise security feature setsCisco.

2. Hardware & Performance Specifications

Core Switching & Forwarding Performance

• Per-Slot Switching Fabric Capacity: 48 Gbps non-blocking shared memory architecture (1:1 line-rate for all 48 ports simultaneously)
• Port Buffer Allocation: Dedicated receive buffer per RJ45 port, shared egress buffer pool with Dynamic Buffer Limiting (DBL) congestion avoidance
• Forwarding Performance: Line-rate Layer 2 switching for all 48 Gigabit ports; hardware-assisted Layer 3 IPv4 forwarding, IPv6 software-switched forwarding
• Maximum Supported Frame Size: Jumbo frames up to 9216 bytes, baby giant frames up to 1600 bytes for legacy Metro Ethernet deployments
• Aggregation Capacity: Supports EtherChannel / PAgP / IEEE 802.3ad LACP link aggregation across line card ports, maximum 8 ports per logical EtherChannel bundle, cross-line-card EtherChannel supported
• MTBF: 140,696 operating hours under standard indoor environmental conditions中关村在线...
• Max Power Consumption of Line Card (without PoE load): 75 Watts maximum rated power draw
• Total Maximum PoE Power Budget Support: Up to 1440W total inline power capacity when paired with sufficient high-wattage Catalyst 4500E AC power suppliesCisco

PoE Power Delivery Specifications

• Supported Power Standards:
  1. Cisco UPOE: Up to 60W per RJ45 port (dual-signal pair power delivery)
  2. IEEE 802.3at PoE+: Up to 30W per port, all 48 ports can deliver 30W simultaneously
  3. IEEE 802.3af PoE: Up to 15.4W per port
  4. Cisco pre-standard PoE legacy device compatibility
• Power Management Features: Per-port PoE enable/disable, PoE priority scheduling, power budget threshold alerting, automatic power shutdown for over-current/short-circuit port faults, PoE power consumption SNMP monitoring and logging

Front Panel Physical Port & Indicator Layout

1. Gigabit Copper Ports (48 × RJ45 10/100/1000BASE-T UPOE Ports)
   • Port speed auto-negotiation: 10Mbps / 100Mbps / 1000Mbps full-duplex, half-duplex fallback support
   • PoE power classification auto-detection: Automatically identifies 802.3af / 802.3at / UPOE powered devices
   • Per-port bi-color status LEDs: Green = link up/active traffic, Amber = PoE fault, port disabled, link down, power overload condition
2. Module System Status Indicators
   • Global module health LED: Solid green = operational normal, solid red = critical hardware fault, flashing amber = boot/diagnostic mode
   • Hot-swap ejector levers with integrated locking tabs for safe module insertion/removal without chassis power shutdown
3. No Integrated Console or Management Ports – all management interfaces reside on the chassis supervisor engine module

Physical, Environmental & Power Specifications

Physical Dimensions & Weight

• Form Factor: Single-slot hot-swappable line card for Catalyst 4500E 19-inch rack chassis
• Overall Dimensions (H × W × D): 3.0 cm × 36.2 cm × 27.3 cm (1.2 in × 14.25 in × 10.75 in)
• Bare Line Card Net Weight: ~1.08 kg

Environmental Operating Specifications

• Operating Ambient Temperature Range: 0°C to 40°C (32°F to 104°F) standard data center/wiring closet environment
• Storage & Transport Temperature Range: -40°C to 75°C (-40°F to 167°F)
• Operating Relative Humidity: 10% to 90% non-condensing humidity for 24/7 continuous chassis operation
• Operating Altitude: -60 meters up to 3000 meters above sea level
• Acoustic Noise: No onboard cooling fans; all thermal dissipation via passive heatsinks; chassis cooling fans handle overall system thermal load
• Carrier-Grade Compliance: NEBS Level 3 (GR-1089-CORE, GR-63-CORE), ETSI ETS-300386-2, EN 50121-4

3. Supported Layer 2 / Layer 3 Protocol & Feature Set

Layer 2 Switching Features

• IEEE 802.1Q tagged VLAN trunking, maximum 4094 active concurrent VLANs
• Spanning Tree Protocol suite: IEEE 802.1D STP, 802.1w Rapid STP (RSTP), 802.1s Multiple STP (MSTP); UplinkFast, BackboneFast, root guard, BPDU guard
• Link Aggregation: IEEE 802.3ad LACP, Cisco PAgP, cross-line-card EtherChannel support
• Multicast Optimization: IGMP v1/v2/v3 hardware snooping, Cisco Group Multicast Protocol (GMP) server functionality
• Link Fault Detection: Unidirectional Link Detection (UDLD) and aggressive UDLD modes
• Security Layer 2 Features: Port security, MAC address learning limits, static secure MAC binding, private VLANs with promiscuous trunk support, Q-in-Q VLAN stacking pass-through, hardware IEEE 802.1AE MACsec copper link encryption
• Energy Efficiency: IEEE 802.3az Energy Efficient Ethernet (EEE), automatic port power-down for idle link states
• Traffic Suppression: Broadcast, multicast, unknown unicast storm control (software rate-limiting)
• Misc Layer 2: Cisco Discovery Protocol (CDP), Layer 2 protocol tunneling (L2PT), CoS mutation for trunk ports

Layer 3 Routing Features

• IPv4 Hardware Forwarding: Static routing, default static routes, EIGRP stub routing support, IP unnumbered SVI interfaces, SVI autostate exclude
• IPv6 Forwarding: Software-switched IPv6 packet forwarding (no dedicated IPv6 hardware ASIC acceleration)
• Access Control Lists: Hardware-based Port ACLs (PACLs), VLAN ACLs (VACLs), Router ACLs (RACLs) with zero performance overhead
• WCCP Version 2 Layer 2 redirect support for web cache offloading

QoS Traffic Management Features

• Hardware Per-Port QoS Architecture: 4 independent egress hardware queues per RJ45 port
• Traffic Classification Mechanisms: Layer 2 CoS marking, Layer 3 DSCP / IP Precedence classification, full Layer 3/Layer 4 ACL header matching for granular traffic identification
• Policing & Shaping: 512 independent ingress policer instances, 512 independent egress policer instances; aggregate and per-flow policing modes, egress traffic shaping and bandwidth sharing
• Congestion Avoidance: Dynamic Buffer Limiting (DBL) to prevent egress buffer overflow and random packet loss
• Scheduling Algorithms: Strict priority queuing for real-time voice/video traffic, weighted round-robin (WRR) shared queue scheduling for data traffic
• Unified Communications QoS: Auto-QoS CLI template for simplified VoIP and TelePresence deployment, per-port/per-VLAN CoS/DSCP marking and mutation

Enterprise Security Features

• Hardware IEEE 802.1AE MACsec point-to-point copper link encryption for secure access layer endpoint trunking
• Cisco TrustSec hardware classification and tagging support for identity-based network access control
• IEEE 802.1X port-based Network Access Control (NAC) compatible (NAC processing handled by supervisor engine)
• DHCP Snooping with DHCP Option 82 insertion to block rogue DHCP server attacks
• ARP Inspection (DAI) for Layer 2 ARP spoofing attack prevention
• Encrypted management traffic support: AES encryption for SSH v2, TLS 1.1/1.2 for HTTPS web administration (security functions managed via supervisor IOS XE firmware)

High Availability Redundancy Features

• Hot-swappable line card design: Insert, remove, or replace the module without powering down the entire Catalyst 4500E chassis
• Stateful Switchover (SSO) and Non-Stop Forwarding (NSF) compatibility: When paired with dual redundant E-series supervisors, line card Layer 2 MAC tables and forwarding state are synchronized for subsecond failover with zero data-plane traffic outage

4. Network Security & QoS Compliance Standards

1. Dual-stack IPv4 / IPv6 network protocol support; DHCP dynamic IP addressing or static IP configuration managed via chassis supervisor engine
2. Enterprise Network Access Security Controls: IEEE 802.1X EAP-TLS/EAP-PEAP wired authentication, multi-level local administrator password access control, role-based access control (RBAC) for web-based device management portal
3. Remote Administration Security Protocols: Encrypted SSH v2 secure shell CLI remote access, HTTPS TLS 1.1 / TLS 1.2 encrypted web management portal, XML/SOAP encrypted remote API interfaces for third-party network monitoring systems
4. Digital Identity Certificate Support: Manufacturer-Installed Certificates (MIC), Locally Significant Certificates (LSC), and X.509 DER/Base64 digital identity certificates for secure TLS authentication to TACACS+/RADIUS AAA servers
5. QoS Traffic Prioritization Compliance: IEEE 802.1Q VLAN tagging for logical segmentation of voice/media traffic and enterprise data traffic; IEEE 802.1p Layer 2 CoS marking to prioritize real-time VoIP and TelePresence video conference streams above standard office data packets, eliminating media latency and packet loss artifacts.

5. Unified Communications & Network Automation Feature Set

Core Enterprise Unified Communications & Meeting QoS Feature Set

1. Supported Unified Communications Deployment Scenarios:
   • Enterprise campus access layer Gigabit UPOE copper aggregation for Cisco CUCM IP phone endpoints
   • High-power enterprise Wi-Fi 6 access point PoE power and data aggregation
   • Converged IP surveillance camera and VDI thin-client edge endpoint aggregation
2. Complete Voice & Video Call QoS Control Operations:
   • Auto-QoS template automatic CoS/DSCP marking for VoIP media packets on UPOE access ports
   • Strict priority egress queue scheduling to guarantee low-latency transport for TelePresence video conference traffic
   • Per-port ingress policing to limit rogue voice/video stream bandwidth consumption and protect mission-critical media traffic
   • OBTP (One Button To Push) calendar-scheduled meeting dynamic QoS policy activation; line card automatically prioritizes video conference traffic during pre-booked enterprise TelePresence meetings
3. Directory & Network Log Management Capabilities:
   • LDAP corporate directory lookup compatibility integrated with Cisco Unified Communications Manager (CUCM) and Cisco TelePresence Management Suite (TMS)
   • Persistent local switch logging storage on supervisor onboard flash memory; remote syslog server export for centralized enterprise network audit tracking
4. Supplementary Unified Communications Features: Integrated visual voicemail indicator support for IP phone endpoints, single number reach mobility feature support, ad-hoc point-to-point video conference traffic prioritization; URI dialing support for SIP video endpoints, RFC 4733 DTMF tone transmission for analog PSTN gateway integration; NTP network time synchronization for accurate meeting log timestamps, DNS service discovery, automatic gatekeeper discovery for legacy H.323 TelePresence endpoint interoperability.

Intelligent Network Workflow Automation Functions

1. OBTP Scheduled Meeting QoS Sync: When enterprise video conferences are scheduled via Microsoft Outlook/Google Calendar and launched from Cisco TelePresence endpoints connected to the Catalyst 4500E switch, the WS-X4748-UPOE+E line card automatically applies high-priority QoS policies to all UPOE copper access ports carrying conference media traffic without manual administrator configuration
2. Automatic System Hardware Fault Monitoring: Continuous real-time monitoring of line card temperature, port link status, PoE power draw, transceiver fault conditions; automated SNMP trap alert generation sent to enterprise network monitoring servers for hardware failure pre-alerting
3. Multi-Platform Meeting Interoperability: Native certified support for Cisco Webex Meetings traffic QoS prioritization, all third-party standards-compliant SIP/H.323 video conferencing endpoints without requiring auxiliary external AV switching hardware or third-party media bridge equipment
4. Multi-Mode Device Control Interfaces: Full Catalyst 4500E chassis and line card function control via three independent user interface methods:
   • Local RJ-45 console CLI (primary local administrator control method for all switch configuration and troubleshooting functions, located on chassis supervisor engine)
   • Remote HTTPS encrypted web administration portal for off-site enterprise IT administrator full chassis configuration and real-time port/route status monitoring
   • Bidirectional SNMP v2c / v3 MIB control integration for third-party enterprise network monitoring automation systems (SolarWinds, PRTG, Zabbix)
5. Third-Party Enterprise Network Monitoring Automation Integration: Supports SNMP trap notification linkage with third-party network monitoring platforms, standardized MIB object libraries for chassis resource utilization tracking, fully customizable automation macros for scheduled switch configuration backup, IOS XE image upgrade scheduling, and routine port status audit workflows
6. Digital Signage Kiosk Standby Mode QoS: Configurable automatic QoS policy adjustment for connected digital signage kiosk endpoints during off-hours non-meeting periods, lowering signage traffic priority to reserve uplink fiber bandwidth for critical enterprise voice and video conference traffic

6. Supported Enterprise Compatibility Platforms

1. On-Premises Unified Communications Architecture: Cisco Unified Communications Manager (CUCM) version 8.x, 9.x, 10.x stable official software releases with dedicated Catalyst 4500E access layer switch voice VLAN and QoS compatibility configuration templates, integrated with Cisco Unified Presence (Jabber IM/presence synchronization) and Cisco TelePresence Management Suite (TMS) for enterprise-wide IP phone and video conference endpoint full-lifecycle management
2. Remote Access & Cloud Hybrid Architecture: Cisco TelePresence Expressway-C / Expressway-E cross-firewall traversal gateways for secure off-site remote TelePresence endpoint registration across corporate network firewalls via Gigabit Ethernet wired LAN infrastructure; native support for Cisco WebEx cloud meeting platform and Cisco TelePresence Management Suite (TMS) centralized on-premises device management portal
3. Third-Party Interoperability Compliance: Fully standards-compliant SIP RFC signaling protocol, H.323 and H.460 firewall traversal communication protocols, compatible with all industry-standard third-party video conferencing platforms, IP PBX telephone systems and multi-vendor TelePresence endpoint hardware from competing collaboration vendors, as well as all third-party enterprise network monitoring and SNMP management platforms.

7. Core Deployment Advantages of Cisco WS-X4748-UPOE+E Line Card

1. Compact single-slot hot-swappable line card form factor optimized for Catalyst 4500E modular chassis campus access layer wiring closet deployments; 48 independent UPOE Gigabit RJ45 copper ports deliver wire-speed high-density power+data aggregation, supporting all generations of PoE-powered enterprise edge endpoints including high-power Wi-Fi 6 APs and PTZ surveillance cameras
2. Native hardware IEEE 802.1AE MACsec copper link encryption plus AES encrypted management control traffic and full enterprise-grade 802.1X NAC security policy enforcement meets strict enterprise, government, healthcare and financial regulated industry network access compliance standards, enabling deployment within classified corporate campus and branch office network environments without external dedicated standalone security gateway hardware
3. True non-blocking 48 Gbps per-slot switching fabric delivers 1:1 line-rate forwarding across all 48 UPOE copper ports simultaneously, eliminating access layer bandwidth bottlenecks for converged voice, wireless, video and data enterprise traffic while maintaining controlled chassis power consumption (75W max for line card itself, independent of PoE load)
4. Built-in SSO/NSF redundant high availability compatibility eliminates requirement for complex external routing protocol failover architecture for campus access layer networks, reducing enterprise unified communications hardware capital expenditure for headquarters and regional branch office deployments
5. Full UPOE 60W per-port power delivery eliminates costly separate AC power adapters for power-hungry enterprise edge devices, simplifying wiring closet cable management and reducing overall site electrical infrastructure costs; flexible PoE power budgeting and priority scheduling prevent power overload faults during peak load conditions
6. Passive heatsink cooling design delivers zero audible operational noise for the line card module itself; all cooling load is handled by the main Catalyst 4500E chassis power supply fans, making WS-X4748-UPOE+E ideal for quiet office wiring closet and executive campus network closet environments where noisy active-cooled line card modules create disruptive background distractions
7. Full backward compatibility with all legacy Catalyst 4500E series chassis and E-series supervisor engines, fully interoperable with existing enterprise CUCM/VCS/TMS on-premises unified communications infrastructure, enabling cost-effective legacy PoE access line card hardware replacement without full corporate campus access layer switch chassis refresh investment
8. Centralized mass Gigabit Ethernet wired LAN device fleet management via CUCM, TMS or VCS simplifies bulk IOS XE firmware batch upgrades, batch standardized enterprise security/QoS policy template deployment, real-time distributed headquarters/branch office Catalyst 4500E chassis hardware health monitoring and remote IT administrator troubleshooting, drastically reducing daily enterprise IT administration workload for large-scale distributed global corporate headquarters and regional branch office network fleets.

8. Supplementary Product Specification Notes

SKU / Model Naming Recap

• WS-X4748-UPOE+E: Cisco Catalyst 4500E Series 48-port line-rate Gigabit Ethernet RJ45 Universal PoE hot-swappable modular line card, 48 Gbps non-blocking per-slot switching capacity, full UPOE 60W per-port power delivery (30W PoE+ simultaneous all ports), hardware IEEE 802.1AE MACsec copper link encryption, compatible exclusively with Catalyst 4500E chassis and E-series supervisor engines, universal 100–240V AC chassis power input compatible, K9 secure IOS XE firmware compliant with AES encrypted management traffic and full enterprise NAC security policy support for regulated industry campus access layer PoE endpoint deployments.
• K9 Compliance Note: All factory WS-X4748-UPOE+E IOS XE firmware releases implement H.235v3 AES 128-bit encrypted remote CLI, web portal and SNMP management traffic, plus hardware MACsec link encryption, meeting Cisco K9 secure network hardware classification standards required for government, military, healthcare, and financial regulated enterprise campus and branch office network deployments.
• NR Variant Note: No separate RF-restricted NR cellular radio variant exists for WS-X4748-UPOE+E; the line card contains no integrated cellular mobile radio signal generation or transmission modules, all network connectivity is delivered exclusively via RJ45 copper UPOE ports only.

Regulatory Compliance Certifications

Fully compliant with global international industry certification standards including EU Low-Voltage Directive 2014/35/EU (IEC/EN 60950-1), EMC Electromagnetic Compatibility Directive 2004/108/EC, UL 60950-1 safety certification, CAN/CSA-C22.2 No. 60950-1, FCC CFR 47 Part 15 Class A electromagnetic emissions certification for data center IT networking equipment, NEBS Level 3 carrier-grade compliance, ETSI ETS-300386-2, EN 50121-4, and global RoHS5 hazardous substance restriction compliance approval.

Factory Hardware Warranty Terms

Standard 1-year limited hardware warranty coverage for brand-new factory-sealed complete WS-X4748-UPOE+E line card modules purchased through official Cisco authorized global distribution channel partners. Critical lifecycle limitation note: The product EoS/EoSS status restricts active hardware replacement warranty service eligibility for all WS-X4748-UPOE+E units purchased after Cisco’s official End-of-Sale cutoff date; all formal Cisco technical TAC engineering hardware repair support services terminated permanently at the published End-of-Support date.

UNSPSC Classification Code

43222612 (Hot-swappable modular enterprise LAN switch line card for Catalyst 4500E chassis, 48-port line-rate Gigabit RJ45 Universal PoE access layer interfaces, 48Gbps non-blocking per-slot switching fabric, hardware MACsec encryption, hardware QoS and enterprise NAC security feature support, AES encrypted network management traffic, compatible with E-series Catalyst 4500 modular rack-mount campus access layer chassis switches).