SRX300 Series (SRX300 / SRX320 / SRX340 / SRX345) support dates
| Milestone | Date | Basis | Source |
|---|---|---|---|
| Hardware End of Life announcement (SRX300 / SRX320 / SRX340 / SRX345 chassis) | — | Not yet announcedNo chassis SKU for these models appears in either the current or the historical SRX EOL table as of the 16 Sept 2026 update. | SRX Series Hardware Dates & Milestones - Juniper Networks (last updated 16 Sept 2026) |
| Last Order: SRX300-ATP-1/3, SRX320-ATP-1/3, SRX340-ATP-1/3/5 and SRX345-ATP-1/3/5 subscription SKUs (SKU Transformation Announcement, licence only, not hardware) | 30 September 2023 | Vendor-publishedAnnounced 2021-09-15. End of Support is listed as N/A. | SRX Series Hardware Dates & Milestones - Juniper Networks (last updated 16 Sept 2026) |
| Last Order: SRX300/320/340/345-CS-BUN-1/3/5 and SRX340/345-ATP-BUN-1/3/5 bundle SKUs (SKU Transformation Announcement, licence only) | 31 December 2021 | Vendor-publishedAnnounced 2021-07-15. End of Support is listed as N/A. | SRX Series Hardware Dates & Milestones - Juniper Networks (last updated 16 Sept 2026) |
| Last Order: Security Director Cloud licence SKUs S-SD-SRX300/320/340/345-S-C-1/3/5 (software licence only) | 15 October 2024 | Vendor-publishedEOL announced 2024-04-15. For End of Support the page says 'Refer to TSB76687'. | SRX Series Hardware Dates & Milestones - Juniper Networks (last updated 16 Sept 2026) |
Where the SRX300 Series (SRX300 / SRX320 / SRX340 / SRX345) stands today
Juniper's SRX EOL page does carry model-named dates, but none of them is hardware. Under SKU Transformation Announcements, orders ended for the SRX300/320/340/345-CS-BUN and SRX340/345-ATP-BUN bundles on 31 December 2021 (announced 15 July 2021) and for the SRX300-ATP, SRX320-ATP, SRX340-ATP and SRX345-ATP subscriptions on 30 September 2023 (announced 15 September 2021), with End of Support listed as N/A in both cases. The Security Director Cloud licence SKUs S-SD-SRX300/320/340/345-S-C reached Last Order on 15 October 2024 after an EOL announcement on 15 April 2024, and for their End of Support the page refers to TSB76687. These are licence and subscription milestones and should not be read as end of life for the firewalls.
The hardware itself is still being documented. The SRX300-line datasheet, now hosted on hpe.com (a00150823ENW Rev. 2, ©2025 Hewlett Packard Enterprise), says the line consists of five models, the four covered here plus the SRX380; its ordering table still lists product numbers such as SRX300-SYS-JB, SRX320-SYS-JB-P, SRX340-SYS-JB, SRX345-SYS-JB-2AC and SRX345-SYS-JB-DC, with no end-of-sale statement, and Juniper published SRX300-line hardware guide revisions in 2025 and 2026. When an end of life is announced, the dates will appear per SKU on Juniper's SRX Series Hardware Dates & Milestones page, so that is the page to watch for your own units.
No end of life has been announced. When Juniper announces one, the dates will appear per SKU on https://support.juniper.net/support/eol/product/srx_series/. Under Juniper's EOL policy, End of Support normally falls 5 years after the Last Order Date set in the notice, but the notice itself can set different dates.
What still works after Juniper Networks support ends
Juniper Care is not yet under any end-of-life restriction for this hardware. Those restrictions, no new contracts, renewals only without a lapse and no service-level upgrades, begin at a product's Last Order Date, and none has been announced for the SRX300 family. Junos OS downloads are tied to a contract either way: Juniper's current Junos OS installation and upgrade guide, dated 8 September 2026, says downloading Junos OS from Juniper's download site needs a service contract and an access account.
Once a notice is issued, Juniper's EOL policy sets the pattern unless the notice says otherwise. For hardware and its operating system, End of Engineering, after which bug fixes, maintenance releases and patches stop, comes three years after Last Order, and End of Support, after which there is no JTAC access, software releases or hardware replacement, comes five years after Last Order. Those are policy intervals rather than dates; nothing can be derived from them until Juniper publishes a Last Order Date for these models.
- To download Junos OS from Juniper's download site you need a service contract and an access account (Junos OS Software Installation and Upgrade Guide, published 2026-09-08). (juniper.net)
- Juniper's EOL policy is the rule that will apply once these models are announced, unless the EOL notice says otherwise. For hardware and its operating system, End of Engineering (no more bug fixes, maintenance releases or patches) comes 3 years after Last Order, and End of Support (no JTAC, software releases or hardware replacement) 5 years after Last Order. (support.juniper.net)
Vendor support you can still buy
- Juniper Care — Juniper's support service. Its end-of-life contract restrictions (no new contracts, renewals only without a lapse, no upgrades) start only at a product's Last Order Date, and none has been announced for the SRX300-family hardware. (support.juniper.net)
What a maintenance contract needs to cover on the SRX300 Series (SRX300 / SRX320 / SRX340 / SRX345)
The four models need different spares, and a contract has to capture that. The SRX300 is a desktop unit with six 1GbE RJ-45 ports (0/0 to 0/5) and two MACsec-capable 1GbE SFP ports, running from an external 60 W AC adapter (12 VDC, 5 A). The SRX320 is also a desktop chassis, with six 1GbE ports, two 1GbE SFP ports and two Mini-PIM slots; the non-PoE model uses an external 75 W, 12 V adapter, while the PoE model uses a 280 W, 54 V adapter and makes all six Ethernet ports PoE-capable at up to 30 W per port (25.5 W usable at the device), so on the SRX320 the adapter is the part to keep as a spare. All four models carry 4 GB of DRAM and 8 GB of flash.
The SRX340 and SRX345 are 1U, with eight 1GbE ports, eight 1GbE SFP ports, a management port and four Mini-PIM slots, plus a rear slot for a Juniper-qualified SATA SSD that stores traffic logs and is not hot-swappable. Power separates them. The SRX340 has one fixed internal AC supply that is not field-replaceable, so a supply failure means replacing the chassis, whereas the SRX345 is available with a single AC supply, dual AC supplies (Junos 15.1X49-D110 and later) or a single DC supply (Junos 17.4R1 and later). A hardware break-fix support schedule should record each SRX345's power option, any installed Mini-PIMs and whether a log SSD is fitted.
| Specification | Detail | Source |
|---|---|---|
| SRX300 | Desktop chassis. The front panel has six 1GbE RJ-45 ports (0/0–0/5) and two 1GbE MACsec-capable SFP ports. 4 GB DRAM and 8 GB flash. Powered by an external 60 W AC adapter (12 VDC, 5 A). | juniper.net |
| SRX320 | Desktop chassis with six 1GbE ports, two 1GbE SFP ports, 4 GB DRAM, 8 GB flash and two Mini-PIM slots | juniper.net |
| SRX320 PoE / power | On the PoE model all six Ethernet ports are PoE-capable, at up to 30 W per port (25.5 W usable at the device). It uses an external 280 W, 54 V adapter; the non-PoE model uses an external 75 W, 12 V adapter. | juniper.net |
| SRX340 | 1U with eight 1GbE ports, eight 1GbE SFP ports, one management port, 4 GB DRAM, 8 GB flash and four Mini-PIM slots. It has one fixed internal AC power supply that is not field-replaceable. | juniper.net |
| SRX345 | 1U with the same port, memory and Mini-PIM layout as the SRX340. Available with a single AC supply, dual AC supplies (Junos 15.1X49-D110 and later) or a single DC supply (Junos 17.4R1 and later). | juniper.net |
| Log storage (SRX340/SRX345) | Rear slot for a Juniper-qualified SATA SSD that stores traffic logs; the SSD is not hot-swappable | juniper.net |
Extend or refresh the SRX300 Series (SRX300 / SRX320 / SRX340 / SRX345)?
With no end of life announced, no lifecycle date forces a decision on these firewalls, and Juniper Care can still be bought without the post-Last-Order restrictions. Third-party hardware maintenance can still suit estates with many SRX300 or SRX320 desktop units spread across branch sites, but the Junos download rule above means each firewall's Juniper contract position needs settling separately from its hardware cover.
Where refresh comes up, it is about fit rather than lifecycle. An SRX340 at a site that needs power redundancy is the clearest case, since its fixed supply means a supply failure requires a new chassis; within the family, the SRX345 is available with dual AC supplies for exactly that need. Once a notice appears, its Last Order Date will set the clock for End of Engineering and End of Support under Juniper's policy, unless the notice itself sets different dates. In the meantime the server and network end-of-life checker can be used to check the rest of a mixed estate.
- The SRX340's internal AC power supply is fixed and not field-replaceable, so a supply failure means replacing the chassis. If you need power redundancy, the SRX345 is available with dual AC supplies. (juniper.net)
- The SRX320 runs on an external power adapter (75 W, 12 V for the non-PoE model; 280 W, 54 V for the PoE model), so the adapter is the part to keep as a spare. (juniper.net)
- Model-named entries on the SRX EOL page (SRX3xx-ATP, -CS-BUN, -ATP-BUN, S-SD-SRX3xx-S-C) are subscription or licence SKUs, not hardware. They should not be read as end-of-life for the firewalls themselves. (support.juniper.net)
- The current SRX300-line datasheet, now published on hpe.com (a00150823ENW Rev. 2, ©2025 Hewlett Packard Enterprise), says 'The SRX300 line consists of five models' (SRX300, SRX320, SRX340, SRX345, SRX380). Its ordering table lists product numbers including SRX300-SYS-JB, SRX320-SYS-JB, SRX320-SYS-JB-P, SRX340-SYS-JB, SRX345-SYS-JB, SRX345-SYS-JB-2AC and SRX345-SYS-JB-DC. It contains no end-of-sale statement. (hpe.com)
Keep your SRX300 Series (SRX300 / SRX320 / SRX340 / SRX345) covered
Tell us how many you run and when your current cover ends, and we will come back with a like-for-like maintenance quote for that estate. Your model and its support status are attached to the enquiry automatically, so there is nothing to re-type.
Related models
The other pages in this group cover Juniper EX and QFX switches rather than firewalls: the EX2200 end of life page, the EX3300 and EX4600 pages and the QFX5100 end of life page. Licence SKUs aside, nothing on Juniper's SRX EOL page yet ties the four firewalls on this page to a date.
- Juniper EX2300 end of lifeEnd-of-life announced — vendor support still available
- Juniper EX3400 end of lifeCurrent — no end-of-life announced
- Juniper EX4300 end of lifeEnd-of-life announced — vendor support still available
- EX2200 (incl. EX2200-C) end of lifePast the vendor’s last date of support
- EX3300 end of lifePast the vendor’s last date of support
- EX4600 end of lifeEnd-of-life announced — vendor support still available
Look up another model in the server & network end-of-life checker, or read what third-party maintenance covers.
Questions people ask about the SRX300 Series (SRX300 / SRX320 / SRX340 / SRX345)
Is the Juniper SRX300 end of life?
No end of life has been announced for any of the four models. Juniper's SRX Series Hardware Dates & Milestones page, last updated 16 September 2026, lists no SRX300, SRX320, SRX340 or SRX345 chassis SKU in its current or historical tables, so Juniper has published no End of Support date for the hardware.
Why does Juniper's EOL page list SRX345 SKUs?
The SRX345 entries on Juniper's SRX EOL page are subscription and licence SKUs, such as the SRX345-ATP subscriptions (Last Order 30 September 2023) and the S-SD-SRX345 Security Director Cloud licences (Last Order 15 October 2024). The ATP and bundle entries are SKU Transformation Announcements and the Security Director Cloud entries are software licences. None of them is an end-of-life date for the firewall.
When will Juniper stop supporting the SRX340?
Juniper has not set a date. When it announces end of life, its EOL policy places End of Engineering three years and End of Support five years after the Last Order Date in the notice, unless the notice sets different dates.
Can I still download Junos OS for an SRX320?
A Junos OS download from Juniper's site depends on having a service contract and an access account, according to Juniper's Junos OS installation guide. Because no Last Order Date has been announced, Juniper Care contracts for the SRX300 family are not yet subject to Juniper's end-of-life restrictions.
Can I get third-party maintenance for SRX300 Series firewalls?
Third-party maintenance does not wait for an end-of-life date; it generally provides diagnosis, spare parts and engineer support for in-service hardware such as these firewalls. What third-party maintenance covers explains the model; when you request a quote, record each unit's power option, any Mini-PIMs and, on the SRX340 and SRX345, whether a log SSD is fitted.
Sources
Every date, rule and specification above was checked against these on 8 October 2026 by an independent verification pass. Vendors revise lifecycle notices; this page is re-checked by 8 January 2027.
- SRX Series Hardware Dates & Milestones - Juniper Networks (last updated 16 Sept 2026) — support.juniper.net
- juniper.net — juniper.net
- support.juniper.net — support.juniper.net
- Juniper Care — support.juniper.net
- juniper.net — juniper.net
- juniper.net — juniper.net
- juniper.net — juniper.net
- juniper.net — juniper.net
- hpe.com — hpe.com
Last reviewed 7 October 2026. Lifecycle dates for the SRX300 Series (SRX300 / SRX320 / SRX340 / SRX345) are re-verified against Juniper Networks's own notices at each review; a date a vendor has not published is never filled in.