Juniper · SRX300 line
Juniper SRX300
The Juniper SRX300 is a desktop firewall that runs Junos OS. Juniper publishes a firewall throughput of 1.9 Gbps and an IPS throughput of 200 Mbps for it. It has 8 x 1GbE (6 RJ-45 + 2 SFP).
- Firewall throughput
- 1.9 Gbps
- Threat protection
- 200 Mbps (IPS)
- IPsec VPN
- 336 Mbps
- Form
- Desktop
Who it suits
As a desktop unit it suits a small office, a shop or a branch that has no server rack. With protection switched on, plan for an internet line of no more than about two-thirds of the IPS throughput figure. For the SRX300 that means a line of up to about 100 Mbps.
Juniper SRX300 specifications
| Performance | |
|---|---|
| Firewall throughput | 1.9 Gbps |
| IPS throughput | 200 Mbps |
| IPsec VPN throughput | 336 Mbps |
| Maximum concurrent sessions | 64,000 |
| New sessions per second | 5,000 |
| Hardware | |
| Form factor | Desktop |
| Ports | 8 x 1GbE (6 RJ-45 + 2 SFP) |
Session, port and IPS figures are from Juniper's SRX performance matrix.
Specifications from Juniper's published data, checked October 2026. See Juniper's firewall pages. Throughput figures are each manufacturer's own published numbers. Manufacturers test in different ways, so compare across brands with care. Confirm details before ordering.
What we do with it
- Supply
Firewall supply and installation
The right-sized firewall from any of the five brands, with its licence, installed and configured at your site.
- Audit
Firewall configuration and audit
A review of your rules, firmware, admin access and VPNs, with the weak points fixed and written down.
- Renewal
Firewall licence renewal
Renewals for FortiGuard, Sophos, Palo Alto Networks, SonicWall and Juniper subscriptions, quoted from your serial number.
- Migrate
Firewall migration
Move from an old firewall to a new one, same brand or another, with the rules and VPNs carried over.
Questions about the SRX300
What internet speed can the SRX300 handle?
Juniper publishes an IPS throughput of 200 Mbps for the SRX300. Leaving headroom for busy hours, that suits an internet line of up to about 100 Mbps with protection switched on. With inspection off, its firewall throughput is 1.9 Gbps.
What ports does the SRX300 have?
8 x 1GbE (6 RJ-45 + 2 SFP).
How many connections can the SRX300 handle?
Juniper lists a maximum of 64,000 concurrent sessions and 5,000 new sessions per second.
Does the SRX300 need a licence?
The hardware works as a basic firewall on its own. Protection features such as intrusion prevention, web filtering and anti-malware need an active Juniper subscription, and so do firmware updates and support. We quote the firewall with the licence term you choose.
Do you supply the SRX300 with installation?
Yes. We supply it with its licence registered, install and configure it at your site, and hand over the logins and documentation. Ask for a quote on this page.
Similar Juniper models
- Desktop
Juniper SRX320
Firewall 1.9 Gbps, threat protection 200 Mbps (IPS)
Closest models from other brands
Throughput figures are each manufacturer's own published numbers. Manufacturers test in different ways, so compare across brands with care.
- Desktop
Fortinet FortiGate 30G
Firewall 4 / 4 / 3.9 Gbps, threat protection 500 Mbps
- Desktop
Sophos XGS 88
Firewall 9.9 Gbps, threat protection 2 Gbps
- Desktop
Palo Alto Networks PA-501
Firewall 800 Mbps, threat protection 500 Mbps
- Desktop
SonicWall TZ270
Firewall 2 Gbps, threat protection 750 Mbps