Cisco 921 Router | 1GE, CAT4 LTE, Internal PSU – Aixia

The Cisco 921 router is a compact, secure branch router designed for small offices and remote sites that need reliable wired connectivity backed by 4G LTE failover — all in a space-saving, integrated package.

Interfaces & Connectivity
The Cisco 921 features 1x GE (Gigabit Ethernet) WAN/LAN interface alongside a built-in CAT4 LTE modem, giving businesses a primary wired connection with automatic cellular failover for uninterrupted uptime — ideal for locations where connectivity loss isn’t an option (retail, branch offices, ATMs, remote sites).

Security
As part of Cisco’s Integrated Services Router (ISR) security-focused line, the 921 includes hardware-based encryption, firewall, and VPN capabilities (IPSec), making it well suited for businesses that need to securely connect branch locations back to a central network or data center.

Power & Design
Unlike models requiring external power bricks, the Cisco 921 has an internal PSU, simplifying deployment and reducing cable clutter and points of failure — useful for compact installs like wall-mounted cabinets or small equipment racks.

Best for: SMBs, retail branches, and remote offices needing a small-footprint router with LTE backup connectivity and enterprise-grade security, without a large hardware footprint or complex power setup.