Thông số kỹ thuật Firewall Juniper SRX300-SYS-JB
| Specification | SRX300 |
| Connectivity | |
| Total onboard ports | 8x1GbE |
| Onboard RJ-45 ports | 6x1GbE |
| Onboard small form-factor pluggable (SFP) transceiver ports | 2x1GbE |
| MACsec-capable ports | 2x1GbE |
| Out-of-band (OOB) management ports | 0 |
| Mini PIM (WAN) slots | 0 |
| Console (RJ-45 + miniUSB) | 1 |
| USB 3.0 ports (type A) | 1 |
| PoE+ ports | N/A |
| Memory and Storage | |
| System memory (RAM) | 4 GB |
| Storage | 8 GB |
| SSD slots | 0 |
| Dimensions and Power | |
| Form factor | Desktop |
| Size (WxHxD) | 12.63 x 1.37 x 7.52 in. (32.08 x 3.47 x 19.10 cm) |
| Weight (device and PSU) | 4.38 lb (1.98 kg) |
| Redundant PSU | No |
| Power supply | AC (external) |
| Rated DC voltage range | N/A |
| Rated DC operating voltage range | N/A |
| Maximum PoE power | N/A |
| Average power consumption | 24.9 W |
| Average heat dissipation | 85 BTU/h |
| Maximum current consumption | 0.346 A |
| Acoustic noise level | 0dB (fanless) |
| Airflow/cooling | Fanless |
| Environmental, Compliance, and Safety Certification | |
| Operational temperature | -4° to 140° F (-20° to 60° C)7 |
| Nonoperational temperature | -4° to 158° F (-20° to 70° C) |
| Operating humidity | 10% to 90% noncondensing |
| Nonoperating humidity | 5% to 95% noncondensing |
| Meantime between failures (MTBF) | 44.5 years |
| FCC classification | Class A |
| RoHS compliance | RoHS 2 |
| FIPS 140-2 | Level 2 (Junos 15.1X49-D60) |
| Common Criteria certification | NDPP, VPNEP, FWEP, IPSEP (based on Junos 15.1X49-D60) |
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