The Cisco WS-X4920-GB-RJ45 is a 20-port, wire-speed 10/100/1000BASE-T (RJ-45) half-card module designed for Cisco Catalyst 4900M Series switches. It installs into the 4900M’s half-card expansion slot to provide flexible Gigabit Ethernet server access, enabling cost-effective scalability and configuration flexibility for top-of-rack and aggregation deployments.
| Specifications | WS-X4920-GB-RJ45 |
| Description | The WS-X4920-GB-RJ45 half-card Ethernet module provides 20 10/100/1000-Mbps full-or half-duplex ports for Catalyst 4900M Series |
| Product Family | Catalyst 4900M |
| Product Type | Switching Module |
| Module type | 10/100/1000BASE-T half-card Ethernet module |
| Port duplex mode | Half- or full-duplex mode |
| Number of ports | 20 |
| Connector type | RJ-45 |
| Cable type | Category 5 and Category 6 |
| Cabling distance | 328 ft (100 m) |
| Dimensions in. | 1.9" x 7.4" x 8.2" |
| Media Type Supported | Twisted Pair |
| Power over Ethernet | Not supported |
| Pluggable transceivers support | Not supported |
