Cisco CBS350-48T-4X Full English Product Description
1. Short Sales Title (For Quotation & E-commerce Listing)
Cisco CBS350-48T-4X Business 350 Series 48-Port Gigabit Non-PoE Fully Managed Layer 3 Switch, Global Standard Version, 4 Dedicated 10G SFP+ High-Speed Uplink Slots, Dual-Stack IPv4/IPv6 Dynamic Routing, True Stackable, 1RU Rackmount High-Density Non-Blocking 10G Aggregation Switch
2. Official Product Overview
The Cisco CBS350-48T-4X is a high-density non-PoE enterprise-class fully managed Layer 3 switch within the Cisco Business 350 global portfolio. The suffix 4X stands for four independent dedicated 10-Gigabit SFP+ uplink ports (10G fiber backbone), clearly differentiated from 4G models equipped with only 1G SFP uplinks. It is designed for large office access layers, multi-floor campus core wiring closets, enterprise headquarters and bandwidth-heavy storage backhaul environments without PoE-powered endpoints.
Compared with entry-level CBS250 smart switches, the CBS350 platform delivers full enterprise-grade managed capabilities: dynamic Layer 3 RIPv2 routing, true single-IP stacking, comprehensive anti-spoofing security suite, sFlow traffic analytics and complete multicast control. This copper-only switch optimizes pure data transmission for desktop workstations, high-performance NAS storage arrays, POS terminals and separately powered Wi-Fi 6/6E wireless access points, supporting high-bandwidth cross-building fiber backbone via four standalone 10G SFP+ slots.
It features 48×10/100/1000BASE-T RJ45 copper data ports plus 4 dedicated 10G SFP+ fiber uplink slots, offering 52 total Gigabit access ports plus 4×10G high-speed uplink interfaces for redundant multi-link fiber interconnection between buildings and remote branches. Powered by a high-performance ARM processor with 512MB DRAM and 256MB flash memory, it delivers 104 Gbps non-blocking switching capacity and 77.38 Mpps wire-speed forwarding rate for 64-byte frames, equipped with a large 3MB shared dynamic packet buffer to eliminate congestion under mass office PC traffic, bulk storage file transfers and multi-stream 4K surveillance backhaul over 10G fiber links. Optimized forced-air cooling design supports stable 24/7 continuous rack deployment in data rooms, campus equipment rooms and retail server racks.
3. Port & Hardware Specifications
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48 × 10/100/1000Mbps RJ45 data-only ports (No PoE power support at all)
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4 × dedicated 10G SFP+ uplink slots (fiber-only non-combo design, 4X = four 10G high-speed uplink ports, distinct from 4G 1G SFP models)
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Supported Cisco transceivers: Gigabit SFP (MGBSX1/MGBLX1/MGBLH1/MGBT1), 10G SFP+ (SFP-10G-SR, SFP-10G-LR, SFP-10G-LX, copper twinax SFP+)
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Internal universal AC power supply: 100–240V 50/60Hz global standard power cord
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Multi-fan optimized thermal cooling design for heavy-load long-term operation
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Switching Capacity: 104 Gbps Non-Blocking
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Forwarding Rate (64-byte packets): 77.38 Mpps
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Shared Packet Buffer: 3 MB
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MAC Address Table: 16K entries; Jumbo Frame support up to 9000-byte MTU
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Dual console ports: RJ45 serial console + mini USB port for offline local CLI configuration
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Front-panel USB Type-A port for offline config backup & firmware upgrade
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True stacking capability: stack up to 4 CBS350 series switches under single IP unified management; cross-stack LAG, VLAN, QoS and remote port mirroring fully supported
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Form Factor: 1RU standard rackmount chassis, support rack mount, wall mount and desktop placement
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Dimensions: 445 × 308 × 44 mm (17.5 × 12.14 × 1.73 inches)
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Weight: 3.12 kg (6.88 lbs)
4. Comprehensive Layer 2 Switching Functions
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Up to 4096 IEEE 802.1Q tagged VLANs, port-based VLAN, voice VLAN, guest VLAN, private VLAN, dedicated management VLAN
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8 priority egress queues with Strict Priority / WRR / SPQ QoS scheduling to prioritize VoIP, surveillance video and business data traffic
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IEEE 802.3ad LACP link aggregation, multiple LAG groups for bandwidth expansion & link redundancy, cross-stack LAG support
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IGMP Snooping v1/v2/v3 with built-in IGMP Querier, supporting up to 1024 multicast groups for IPTV and mass IP video surveillance
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LLDP & LLDP-MED automatic endpoint discovery for IP phones, cameras and wireless APs
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Port mirroring, VLAN mirroring, RSPAN remote mirroring, RSTP/MSTP/PVST+ spanning tree, BPDU Guard, Root Guard, Loop Guard
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Broadcast/multicast/unicast storm control to prevent network flooding failures on high-volume 10G uplinks
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Enterprise anti-spoofing toolkit: DHCP Snooping, Dynamic ARP Inspection (DAI), IP Source Guard, static IP/MAC/Port Binding
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sFlow traffic monitoring for real-time 10G uplink bandwidth analysis and network fault troubleshooting
5. Advanced Dual-Stack Dynamic Layer 3 Routing
Far exceeding static-only routing on CBS250 smart switches, CBS350 provides full wire-speed Layer 3 forwarding:
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Dynamic routing protocol: RIPv2 for IPv4
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Up to 990 IPv4 static routes, 990 IPv6 static routes, 128 Layer 3 VLAN interfaces
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Native dual-stack IPv4 & IPv6 wire-speed forwarding, CIDR aggregation, full IPv6 first-hop security (ND Inspection, RA Guard)
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Built-in IPv4 DHCP Server & DHCP Relay with Option 82, UDP relay functionality
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Policy-Based Routing (PBR) for flexible traffic steering across multi-building network segments
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Direct inter-VLAN routing without external routers to reduce core gateway latency and bandwidth load for large-scale cross-site traffic
6. Enterprise-Grade Multi-Layer Security Suite
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IEEE 802.1X port-based authentication with RADIUS/TACACS+ centralized access control, web-based captive portal authentication
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Port security, static/dynamic MAC address binding, automatic port shutdown for unauthorized terminals
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Comprehensive DoS attack suppression, hardware accelerated L2-L4 ACL traffic filtering
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Encrypted management channels: HTTPS web GUI, SSH multi-privilege CLI, SCP file transfer, SNMPv3 secure remote monitoring
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Persistent syslog event logging, built-in cable diagnostic tools, mandatory password complexity policy
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Independent guest network isolation, Private VLAN Edge (PVE) for client separation
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Secure boot, encrypted configuration file storage, IPv6 ND Inspection & RA Guard to block IPv6 fiber link spoofing attacks
7. Energy-Saving Green Technologies
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IEEE 802.3az Energy Efficient Ethernet (EEE): auto power reduction for idle copper and SFP+ links
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Dynamic power tuning based on link status to cut unnecessary power consumption
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Port LED dimming or full shutdown mode for unmanned equipment rooms
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Intelligent fan speed adjustment according to internal temperature to save power
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Optimized hardware design with balanced heat dissipation and extended service lifespan
8. Multi-Mode Local & Remote Management
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Intuitive graphical web management interface (HTTP/HTTPS) with basic & advanced operation modes
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Dual offline local console access: serial RJ45 + mini USB port for offline CLI configuration
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SSH secure remote command line management with multi-user privilege levels (1 / 7 / 15)
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SNMP v1/v2c/v3 compatible with third-party network monitoring platforms, native sFlow support
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TFTP/SCP/offline USB firmware upgrade, dual redundant firmware images for reliable zero-downtime upgrades
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SNTP time synchronization, ping & traceroute diagnostic tools, Smartport auto-provisioning templates
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Single IP stacking management for centralized batch control of up to 4 stacked CBS350 switches
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Fully compatible with Cisco Business Dashboard & Cisco Business Mobile App for unified topology visualization and zero-touch large network deployment
9. Physical & Environmental Parameters
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Operating Temperature: -5°C to 50°C; Storage Temperature: -25°C to 70°C
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Operating Humidity: 10%–90% non-condensing relative humidity
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Global compliance standards: CE, RoHS, UL, FCC Class A
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MTBF: 909,838 hours at 25°C ambient temperature
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Warranty: Cisco Limited Lifetime Hardware Warranty
10. Typical Deployment Scenarios
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Large enterprise main access switch for dozens of office workstations and centralized high-capacity NAS storage
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Global multi-building campus core aggregation switch with 10G SFP+ uplinks interconnecting workshop, classroom and office buildings
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Retail headquarters backbone switch for mass POS terminals and separately powered full Wi-Fi coverage
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Large factory fiber backhaul aggregation switch linking fiber surveillance systems to central data room
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Stackable multi-switch scalable enterprise network leveraging true stacking and dynamic Layer 3 routing for multi-floor cross-segment traffic routing
11. Standard Package Contents
1 × Cisco CBS350-48T-4X Non-PoE Fully Managed Gigabit Switch (Global Standard Version)
1 × Global standard AC power cord
Rack mounting brackets and installation screws
Quick Start Guide & global regulatory compliance documents
Short Commercial Version (For Product Ads & Listing Titles)
The Cisco CBS350-48T-4X is a global non-PoE high-density 48-port Gigabit fully managed switch with 4 dedicated 10G SFP+ high-speed fiber uplink ports (4X = four 10G uplink slots, separate from 1G SFP 4G models). Featuring dynamic dual-stack IPv4/IPv6 Layer 3 routing, true stacking capability, enterprise anti-spoofing security, full QoS and intelligent thermal fan design, it delivers non-blocking high-capacity data connectivity for mass workstations, storage and cross-building fiber surveillance devices in large-scale enterprise and campus core networks, supporting rack/wall/desktop deployment, energy-efficient hardware and Cisco Limited Lifetime Hardware Warranty.
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