| MPN | WS‑X4920‑GB‑RJ45 |
| Part Options | 800-29748-05, 800-29749-06 |
| Brand | Cisco |
| Type | Ethernet Line Card |
| Ports Quantity | 20 ports |
| Ports Interface | RJ‑45 (10/100/1000Base‑T) |
| Ports Speed | 10 / 100 / 1000 Mbps (Gigabit) |
| Form Factor | Half Card |
| Compatible With | Cisco Catalyst 4900M |