juniper SRX Series SRX550
The Juniper SRX550 is a 2U modular services gateway designed for large enterprise branch offices and regional campus centers. Featuring six fixed Gigabit Ethernet ports alongside six GPIM expansion slots and dual hot-swappable power supplies, the SRX550 delivers up to 5.5 Gbps of firewall throughput and 1 Gbps of IPsec VPN throughput. In secondary IT equipment channels, the SRX550 is frequently stocked as an affordable replacement spare and modular WAN hub for organizations running legacy T1/E1 and serial telco circuits.
Specifications
| Brand | juniper |
|---|---|
| Family | SRX Series |
| Form factor | 2U rack |
| Released | Sep 2011 |
| End of sale | Sep 2019 |
| End of support | Sep 2024 |
| Ports | 6x fixed 10/100/1000BASE-T RJ-45 ports (including 4x combo SFP ports) |
| Expansion slots | 6x GPIM / Mini-PIM modular interface slots |
| Firewall throughput | 5.5 Gbps stateful firewall throughput |
| Vpn throughput | 1 Gbps IPsec VPN throughput |
| Form factor | 2U rack enclosure with dual hot-swappable AC or DC power modules |
Generations
- Next generation: juniper SRX Series SRX1500
Check compatibility with Juniper
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Juniper has tested with the juniper SRX Series SRX550.
- Compatibility Juniper Hardware Compatibility Tool (optics and modules)
- Specifications Juniper TechLibrary
- Support Juniper Support
FAQ
What interface cards does the SRX550 accept in its GPIM slots?
It accepts Gigabit Ethernet, 10GbE SFP+, multi-port T1/E1, serial, and cellular LTE interface modules.
Can the SRX550 be upgraded with high-memory modules?
Yes, the SRX550-HM variant shipped with upgraded system DRAM to support enhanced UTM threat detection.
Buying or selling SRX550?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Juniper SRX550 Product Overview, checked 2026-10-27
- Juniper SRX550 Datasheet, checked 2026-10-27