| SKU |
C921-4P |
| WAN interfaces |
2 ports Gigabit Ethernet (GE) |
| LAN interfaces |
4-port GE managed switch |
| Integrated USB 2.0 |
Yes |
| Default and maximum DRAM |
Default 1 GB |
| Default and maximum flash memory |
2 GB; not upgradable |
| Dimensions (H x W x D) |
1.70 x 9.0 x 9.5 in. (4.32 x 22.86 x 24.13 c |
