| Model | SRX345 (SRX345-SYS-JB-2AC) |
| Connectivity |
| Total onboard ports | 16x1GbE |
| Onboard RJ-45 ports | 8x1GbE |
| Onboard (SFP) transceiver ports | 8x1GbE |
| MACsec-capable ports | 16x1GbE |
| Out-of-band (OOB) management ports | 1x1GbE |
| Mini PIM (WAN) slots | 4 |
| Console (RJ-45 + miniUSB) | 1 |
| USB 3.0 ports (type A) | 1 |
| PoE+ ports | 0 |
| Memory and Storage |
| System memory (RAM) | 4 GB |
| Storage | 8 GB |
| SSD slots | 1 |
| Performance and Scale |
| Routing with packet mode (64 B packet size) in Mbps | 750 |
| Routing with packet mode (IMIX packet size) in Mbps | 2300 |
| Routing with packet mode (1,518 B packet size in Mbps) | 5500 |
| Stateful firewall (64 B packet size) in Kpps | 550 |
| Stateful firewall (IMIX packet size) in Mbps | 1500 |
| Stateful firewall (1,518 B packet size) in Mbps | 5000 |
| IPsec VPN (IMIX packet size) in Mbps | 325 |
| IPsec VPN (1,400 B packet size) in Mbps | 977 |
| Application visibility and control in Mbps | 1700 |
| Recommended IPS in Mbps | 600 |
| Next-generation firewall in Mbps | 430 |
| Secure Web Access firewall in Mbps | 295 |
| Route table size (RIB/FIB) (IPv4 or IPv6) | 1 million/600,000 |
| Maximum concurrent sessions (IPv4 or IPv6) | 375000 |
| Maximum security policies | 4000 |
| Connections per second | 15000 |
| NAT rules | 2000 |
| MAC table size | 15000 |
| IPsec VPN tunnels | 2048 |
| Number of remote access/SSL VPN (concurrent) users | 250 |
| GRE tunnels | 1024 |
| Maximum number of security zones | 64 |
| Maximum number of virtual routers | 128 |
| Maximum number of VLANs | 3000 |
| AppID sessions | 64000 |
| IPS sessions | 64000 |
| URLF sessions | 64000 |
| Dimensions and Power |
| Form factor | 1 U |
| Size (WxHxD) | 44.09 x 4.36 x 47.5 cm |
| Weight (device and PSU) | 4.90 kg |
| Redundant PSU | No |
| Power supply | AC (internal) |
| Maximum PoE power | N/A |
| Average power consumption | 122 W |
| Average heat dissipation | 420 BTU/h |
| Maximum current consumption | 1.496 A |
| Acoustic noise level | 45.5 dBA |
| Airflow/cooling | Front to back |
| Environmental, Compliance, and Safety Certification |
| Operational temperature | 32° to 104° F (0° to 40° C) |
| Nonoperational temperature | -4° to 158° F (-20° to 70° C) |
| Operating humidity | 10% to 90% noncondensing |
| Nonoperating humidity | 5% to 95% non-condensing |
| Meantime between failures (MTBF) | 27.4 years |
| FCC classification | Class A |
| RoHS compliance | RoHS 2 |
| FIPS 140-2 | Level 2 (Junos 20.2R1) |
| Common Criteria certification | NDPP, VPNEP, FWEP, IPSEP (based on Junos 20.4R1) |
