| Model | Zyxel USG FLEX 700 |
| 10/100/1000 Mbps RJ-45 ports | 12 (configuratble), 2 x SFP (configurable) |
| USB 3.0 ports | 2 |
| Console port | Yes (DB9) |
| SPI firewall throughput | 5,400 Mbps |
| VPN throughput | 1,100 Mbps |
| VPN IMIX throughput | 550 Mbps |
| IPS throughput | 2,000 Mbps |
| UTM throughput (Anti-Malware and IPS) | 1,350 Mbps |
| Max. TCP concurrent sessions | 1,600,000 |
| Recommended gateway-to-gateway IPsec VPN tunnels | 250 |
| Max. concurrent IPsec VPN tunnels | 500 |
| Concurrent SSL VPN users | 150 |
| VLAN interface | 128 |
| SPI firewall throughput | 934 Mbps |
| VPN | IKEv2, IPSec, SSL, L2TP/IPSec |
| Power input | 100-240 V AC, 50/60 Hz, 2.5 A max. |
| Max. power consumption | 46 Watt Max |
| Heat dissipation | 120.1 BTU/hr |
| Packing Dimensions (WxDxH) (mm/in.) | 351 x 152 x 245/13.82 x 5.98 x 9.65 |
| Packing Weight (kg/lb.) | 2.83/6.24 |