| Processor | 16-core |
| Forwarding Performance (NAT + ACL + QoS, IMIX) | SRU-400H: 10 Gbit/s SRU-600H: 12 Gbit/s |
| IPsec Performance (IMIX) | SRU-400H: 6 Gbit/s SRU-600H: 7.5 Gbit/s |
| Fixed Ports | SRU-400H/SRU-600H: WAN: 14 x 10 GE SFP+ (compatible with GE SFP) 10 x GE RJ45 (All WAN ports configurable as LAN) |
| SIC Slots | 4 |
| WSIC Slots | 2 (default)/6 (maximum) |
| XSIC Slots | 2 (default)/4 (maximum) |
| USB Port | 1 x USB 2.0 |
| 5G Support | 5G-SIC compatible |
| Console Port | 1 x RJ45 |
| Memory | SRU-400H: 8 GB SRU-600H: 16 GB |
| Flash Memory | SRU-400H: 2 GB SRU-600H: 4 GB |
| Hot Swapping | Supported |