Full English Description for Cisco C9300L-48UX-4X-A (Official SKU: C9300L-48UXG-4X-A)
1. Part Number Naming Breakdown
Model: C9300L-48UXG-4X-A (shortened as C9300L-48UX-4X-A)
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C9300L: Catalyst 9300 Lite cost-effective stackable fixed-uplink Layer 3 enterprise access switch built on UADP 2.0 ASIC architectureCisco
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48UX (48UXG): Mixed 48-port full UPOE copper portfolio: 12 Multi-Gigabit mGig ports (100M/1G/2.5G/5G/10Gbps) + 36 standard 10/100/1000BASE-T Gigabit ports. All ports support Cisco UPOE up to 60W per port, IEEE 802.3bt Type 3 compliant, backward compatible with IEEE 802.3af (15.4W PoE) and IEEE 802.3at (30W PoE+)
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4X: 4 integrated fixed dual-rate SFP+ uplink slots, auto-negotiate 1G SFP and 10G SFP+ transceivers for high-speed fiber aggregationCisco
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A: Preloaded perpetual Network Advantage IOS XE software license tier, unlocking full enterprise routing suite, SD-Access fabric, TrustSec segmentation, advanced security and complete end-to-end network automation capabilities
2. Short Sales One-Liner (For BOM, Quotation & Datasheet Header)
Cisco Catalyst C9300L-48UXG-4X-A, 1RU stackable Layer3 mixed mGig+Gigabit UPOE access switch, 12×Multi-Gigabit + 36×Gigabit full UPOE RJ45 downlinks with 675W native UPOE power budget, 4 fixed dual-rate 1G/10G SFP+ uplink interfaces, Network Advantage IOS XE license, StackWise-320 stacking support, factory pre-installed 1100W AC power supply, multi-speed high-power PoE edge switch for Wi‑Fi 6/6E APs, PTZ IP cameras, digital signage and mixed desktop/IoT endpoints requiring 10G uplink aggregation bandwidth.
3. Complete Product Overview Paragraph
The Cisco Catalyst C9300L-48UXG-4X-A is a mixed multi-gigabit fixed-uplink stackable Layer 3 UPOE access switch within the Catalyst 9300 Lite product lineup, engineered for enterprise campuses, retail venues, education facilities and large branch networks with hybrid endpoint deployments. High-bandwidth Wi‑Fi 6/6E wireless APs, PTZ surveillance cameras and 10G-capable digital signage leverage the 12 multi-gigabit mGig ports, while standard PCs, IP phones and low-power IoT sensors connect to the 36 1G copper ports; all 48 ports deliver full Cisco UPOE power up to 60W per port to eliminate separate power injectors. Equipped with four built-in dual-speed SFP+ uplink ports supporting native 10G aggregation bandwidth, this chassis delivers wire-speed Layer 2 switching and full-featured enterprise Layer 3 routing enabled by the included Network Advantage license. It supports StackWise‑320 stacking technology to combine up to 8 identical switches into a single logical switching stack, features dual hot‑swappable 1100W AC power supply bays delivering a base 675W UPOE power budget, and natively integrates with Cisco DNA Center for zero-touch provisioning, unified network automation, full flow telemetry and SD‑Access TrustSec security group segmentation for software-defined campus fabric architectures.
4. Detailed Hardware Interface Specifications
Downlink Copper Ports (48×Mixed mGig + Gigabit Full UPOE)
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12 × Multi-Gigabit mGig RJ45 ports: auto-negotiate 100Mbps / 1Gbps / 2.5Gbps / 5Gbps / 10Gbps, full Cisco UPOE compliant, max 60W power per port, IEEE 802.3bz mGig standard certified
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36 × 10/100/1000BASE-T Gigabit RJ45 ports, full Cisco UPOE compliant, max 60W power per port
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All ports backward interoperable with IEEE 802.3af (15.4W PoE) and IEEE 802.3at (30W PoE+) powered devices
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Auto speed negotiation, auto‑MDI/MDI‑X, integrated cable diagnostics, EnergyWise intelligent PoE power management to cut power consumption for idle high-power endpoints
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Hardware-native support for 128-bit and 256-bit AES MACsec port encryption (full MACsec suite unlocked under Network Advantage license)Cisco
Fixed Uplink Interfaces
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4 onboard dual-rate SFP+ slots supporting 1G SFP and 10G SFP+ transceivers, compatible with SX, LX, ZX, LR, copper SFP‑T and SFP+‑T DAC modules
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Uplink ports are factory fixed; no modular uplink card expansion slots available
Management & Auxiliary Ports
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USB Type‑A storage port for offline IOS image upload, configuration backup and system log export
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Dual console access: USB Type‑C console port + Mini‑USB B console port for local CLI administration
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UID beacon LED push-button for rapid physical device identification in dense rack deployments
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Rear dedicated StackWise‑320 stacking connectors; stacking cable kits sold separately as optional accessories
Power & Physical Form Factor
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Form Factor: 1RU standard 19-inch rack-mount chassis, dimensions 4.4 × 44.5 × 48.8 cm
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Dual hot‑swappable redundant AC power supply slots; factory pre-shipped with single 1100W AC PSU (PWR‑C1‑1100WAC‑P)
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UPOE power budget: Single 1100W PSU provides total 675W UPOE capacity; dual redundant PSUs drastically expand total PoE output for full high-power endpoint deployments
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Thermal design: Field-replaceable redundant variable-speed fan trays with overheat fault protection and front-panel LED status indicators
5. Core Hardware Performance Benchmarks
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Standalone Switching Capacity: 392 Gbps
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Standalone Forwarding Rate: 291.66 Mpps
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StackWise‑320 maximum stacked backplane bandwidth: 592 Gbps (stack of up to 8 C9300L switches)
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MAC Address Table Size: 32,000 MAC forwarding entries
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Shared Packet Buffer Memory: 16MB
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Onboard Memory: 8GB DRAM, 16GB Flash storage
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VLAN Support: Up to 4,094 802.1Q tagged VLANs; maximum 1,000 active STP VLANs & SVIs
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QoS Hardware Queues: 8 priority hardware queues per port, full DSCP & 802.1p CoS mapping
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Routing Table Scales: 32,000 IPv4 unicast routes, 16,000 IPv6 unicast routes, 8,000 multicast routes
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Jumbo Frame Support: Up to 9198-byte jumbo frames
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ACL Capacity: 5,120 ingress/egress ACL entries
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Flexible NetFlow: Supports up to 64,000 active flow records
6. Full Layer 2 Standard Feature Suite
IEEE 802.1Q VLAN trunking, IEEE 802.3ad LACP EtherChannel (max 8 ports per bundle), complete spanning tree suite including PVST+, RPVST+, MSTP with BPDU guard, root guard, loop guard and UDLD; LLDP and CDP unified device discovery inventory, port security with sticky MAC allowlist learning, broadcast/multicast storm suppression, IGMP Snooping v1/v2/v3, SPAN/RSPAN remote port mirroring, private VLANs, voice VLAN auto-detection and traffic prioritization, hardware MACsec link encryption.
7. Network Advantage (-A License) Exclusive Layer 3, Security & Fabric Features
Full Enterprise Dynamic Routing Protocols
Static IPv4/IPv6 routing, RIP, OSPFv2/v3, full EIGRP, BGP, IS‑IS, PIM ASM/SSM multicast routing, VRRP, HSRP, GLBP gateway redundancy, wire-speed inter-VLAN routing, dual-stack IPv4/IPv6 forwarding, VRF‑lite, policy-based routing (PBR), MPLS edge functionality.
Advanced Enterprise Security Toolset
IEEE 802.1X multi-domain/multi-host authentication, MAB MAC bypass authentication, DHCP snooping, Dynamic ARP Inspection (DAI), IP Source Guard, CoPP control-plane policing, TrustSec SGT tagging & end-to-end segmentation, Adaptive Policy security group mapping, Encrypted Traffic Analytics (ETA), Cisco Secure Boot, hardware Trust Anchor Module, Cisco Umbrella DNS integration, multi-level RBAC admin access control, TLS/SSH/HTTPS encrypted management transport.
Automation, Visibility & SD‑Access Fabric Capabilities
Native Cisco DNA Center integration, zero-touch provisioning (ZTP), NETCONF/RESTCONF/YANG/gRPC model-driven programmability, full Flexible NetFlow telemetry, complete SD‑Access fabric support with virtual network segmentation, embedded Catalyst 9800 wireless controller, ThousandEyes application performance monitoring integration, unified stack-wide policy orchestration and cross-site topology visualization.
8. License Differentiator: Network Advantage (-A) vs Network Essentials (-E)
The suffix -A (Network Advantage) is Cisco’s top perpetual license tier for Catalyst 9300L fixed-uplink switches, with critical feature upgrades over entry-level -E Network Essentials:
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Unlocks advanced routing protocols unavailable on -E: BGP, full EIGRP, MPLS, VRF‑lite, policy-based routing
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Native SD‑Access fabric and TrustSec Adaptive Policy zero-trust segmentation support exclusive to -A models
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Enables Encrypted Traffic Analytics (ETA), full DNA Center automation workflows and ThousandEyes application monitoring
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No OSPF dynamic route count limitation (Network Essentials caps OSPF learned routes at 1,000)
All switches within a single StackWise stack must deploy identical license tiers to guarantee full stacking interoperability and consistent feature operation.
9. Datasheet Short Summary Paragraph
The Cisco Catalyst C9300L-48UXG-4X-A is a mixed multi-gigabit UPOE stackable Layer 3 access switch equipped with 12×10G-capable mGig + 36×Gigabit full UPOE downlinks and four dual-rate SFP+ 1G/10G fixed uplink ports. Powered by the full-feature Network Advantage IOS XE license, it delivers comprehensive Layer 2 switching, complete enterprise Layer 3 routing, advanced threat security, full DNA automation and native SD‑Access fabric segmentation, supported by StackWise‑320 high-speed stacking and redundant 1100W AC power supplies with a dedicated 675W UPOE power budget. It is the ideal wired edge solution for mixed-speed campus, retail and branch networks deploying high-performance Wi‑Fi 6/6E APs, PTZ cameras, digital signage and standard desktop endpoints that require high-performance 10G uplink aggregation and full software-defined fabric functionality.
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