High-performance business VPN router with multimode 3G/4G modem upto 100 Mbps, downward comp. to HSPA+, HSxPA, UMTS, EDGE, GPRS, incl. IPSec VPN (5 chan. , opt. 25), Load Balancing, QoS, ISDN, USB, and 4 energy-efficient 802.3az Gigabit Ethernet ports