C921-4P is the Cisco 921 Gigabit Ethernet protection router with inner strength supply. Cisco 900 Series ISRs supply included protection and hazard defense, defensive networks from each acknowledged and new Internet vulnerabilities and attacks. These powerful, fixed-configuration routers offer steady broadband and Metro Ethernet connectivity. Service carriers presenting controlled Ethernet WAN offerings can installation them in client places as CPE. Centralized and far off control skills are to be had via web-primarily based totally equipment and Cisco IOS® Software for complete visibility and manage of community configurations on the far off site. The 900 Series ISRs simplify the deployment of Ethernet WAN offerings, with give up-to-give up Operations, Administration, and Maintenance (OA&M), Service-Level Agreement (SLA) tracking and verification, and configuration control. This collection ISRs include a 4-port controlled switch, imparting LAN ports to attach more than one devices.
Quick Specs
| 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 cm) (includes rubber feet) |
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