The professional step up from the III+. Dual-SIM capability, advanced routing features, and a positioning squarely at SOHO and small business users who needed cellular broadband to be reliable as well as fast.
| Network | HSPA+ / UMTS / EDGE / GPRS |
| Max Download | Up to 21 Mbps |
| SIM Slots | Dual SIM (failover / load balance) |
| LAN Ports | 4 x 10/100 Ethernet |
| Wi-Fi | 802.11b/g/n |
| Target | SME / SOHO / Remote offices |
| Management | Web UI + remote management |
Two SIMs - one active, one on standby. Signal drop on the primary triggers automatic failover. Critical for businesses using cellular as a primary connection. Modern equivalent: multi-network SIM cards that switch networks on a single SIM.