The Cisco WS-C4900M is a high-performance, modular Layer 3 switch designed for enterprise aggregation and core environments requiring scalable, low-latency 10 Gigabit and Gigabit Ethernet connectivity. Featuring 2 modular half-card slots, this system supports up to 40 Gigabit Ethernet ports or 24 10-Gigabit fiber ports, depending on configuration.
This unit includes 6 x CVR-X2-SFP modules for 1Gbps SFP use and 4 x Cisco X2-10GB-SR optics for 10Gbps MMF uplinks, delivering excellent flexibility for mixed network environments. A WS-X4920-GB-RJ45 module adds 20 Gigabit RJ-45 ports for high-density copper connectivity. Powered by dual 1000W redundant power supplies, the WS-C4900M ensures high availability in critical deployments.
With 320 Gbps switching capacity, hardware-based IPv6 support, and Cisco IOS Layer 3 features, this switch is ideal for network aggregation, data center access, and high-speed routing applications.
Key Features & Benefits:
Modular Design Supports a flexible mix of 10GbE fiber, 1GbE SFP, and RJ-45 copper ports with high backplane throughput.
10G & 1G Mixed Use Includes 6 CVR-X2-SFP modules and 4 X2-10GB-SR optics for multimode fiber connectivity.
Enterprise Layer 3 Features Static and dynamic routing with IPv4/IPv6 hardware support.
High Throughput 320 Gbps switching capacity and 250 Mpps forwarding for IPv4 traffic.
Redundant Power Dual 1000W PSU units for increased resilience and uptime.
Advanced Security & QoS Supports ACLs, SSL, VLANs, and granular traffic prioritization.
Ideal Uses:
Enterprise Network Core Ideal for core aggregation with scalable bandwidth and rich L3 features.
Campus Aggregation Switch Supports high-density Gigabit and 10G uplinks for large network backbones.
Data Center Access Layer Redundant power and modular flexibility for edge or aggregation layers.
MPLS or IPv6 Transition Future-ready with full hardware support for IPv6 routing and features.
Specifications
Condition:
Refurbished device with minor scratches and scuffs. Device has undergone extensive testing and is fully functional.
Manufacturer & Model:
Cisco Catalyst WS-C4900M
Form Factor:
2RU Modular Layer 3 Switch
Switching & Throughput:
Switching Capacity: 320 Gbps
IPv4 Forwarding Rate: 250 Mpps
IPv6 Forwarding Rate: 125 Mpps
Latency: Low-latency design for aggregation roles
Modular Configuration:
Half-Card Slots: 2
Included Modules:
6 x CVR-X2-SFP (1G SFP adapter for X2 slots)
4 x X2-10GB-SR (10GBASE-SR MMF modules, 850nm, up to 300m)
1 x WS-X4920-GB-RJ45 (20-port 10/100/1000 RJ-45 module)
Memory & Processing:
CPU: 1.3 GHz
DRAM: 512 MB
Compact Flash Memory Support: Yes
USB Port: Yes
Reset Button: Yes
Networking Features:
Active VLANs: 4096
Multicast Entries: 70,000 (IPv4) / 35,000 (IPv6)
MAC Address Table Size: 55,000
SVIs Supported: 4096
Security Entries (QoS & ACL): 128,000
Spanning Tree & VLAN Support:
PVST, 4094 Instances Supported
VLAN IDs: 4096
Jumbo Frame Support: Yes
Power Supplies & Cooling:
Power Supplies: 2 x 1000W AC Redundant
Cooling: Built-in fan system with front-to-back airflow
Physical Dimensions & Weight:
Dimensions (H x W x D): 89mm x 437mm x 455mm
Weight (w/ fan + 1 PSU): 13.4 kg
Environmental & Compliance:
Operating Temp: 0 to 40°C (32 to 104°F)
Storage Temp: -40 to 70°C (-40 to 158°F)
Humidity: 10% to 90% non-condensing
MTBF: 850,000 hours
Compliance: CE, FCC, UL Certified
Operating System & Licensing:
Cisco IOS Version: 12.2(46)SG or later
Layer 3 Capabilities: Static Routing, VLAN Routing, QoS, ACLs
Included Modules Overview:
6 x CVR-X2-SFP: Cisco 1G SFP to X2 converter module
4 x X2-10GB-SR: 10GBASE-SR 850nm multimode SFP+ optics
1 x WS-X4920-GB-RJ45: 20 x 10/100/1000Base-T RJ-45 Layer 3 Gigabit Module
Warranty & Inclusions
Warranty: 3-Month Carry-In Warranty
What's in the Box?
Cisco WS-C4900M Switch
2 x 1000W Power Supplies
6 x CVR-X2-SFP Modules
4 x X2-10GB-SR Modules
1 x WS-X4920-GB-RJ45 Module
Power Cables Only (SFP/Gbics Not Included)
Scalable & Modular Mix copper and fiber ports with modular flexibility.
Ready for Growth Ideal for 10G migration and high-speed enterprise access.
Reliable & Redundant Dual power and enterprise-grade hardware.
Feature-Rich Layer 3 Advanced routing, VLAN, QoS, and multicast ready.
