The Juniper EX4300 is not one end-of-life date. It is three. The original 24 and 48 port copper models reached end of sale on March 31, 2024. The fiber EX4300-32F followed on March 31, 2026. The multigigabit EX4300-48MP has a last order date of December 29, 2026. Support runs to March 31, 2029 for the first two groups and to December 29, 2031 for the 48MP.
That spread matters when a stack mixes models: plan around the member with the earliest support date.
The dates
| Model | Announced | End of sale | End of support |
|---|---|---|---|
| Juniper EX4300 (24P, 24T, 48P, 48T) | 2022-06-24 | 2024-03-31 | 2029-03-31 |
| Juniper EX4300-32F | 2026-03-31 | 2026-03-31 | 2029-03-31 |
| Juniper EX4300-48MP | 2026-06-29 | 2026-12-29 | 2031-12-29 |
Source: Juniper notice for the Juniper EX4300 (24P, 24T, 48P, 48T). Juniper end-of-life notice TSB105633. End of engineering is 2027-03-31. Juniper end-of-life notice TSB109284. End of engineering is 2029-12-29.
What the dates mean
Juniper publishes its end-of-life dates in a technical bulletin. The last order date is the end of sale. End of engineering is the day Juniper stops developing software fixes for the platform. End of support is the last day Juniper's support center takes a case and the last day a support contract covers the hardware.
What we list
The Juniper EX4300 page holds every listing in the family. Part numbers listed today:
- EX4300-24P
- EX4300-24T-TAA
- EX4300-32F
- EX4300-32F-DC
- EX4300-48MP
- EX4300-48P-TAA
- EX4300-48T
- EX4300-48T-AFI
- EX4300-48T-DC
What owners do next
- Keep running it. A switch, router or firewall does not stop working on a maker's date. Hold a tested spare of the same part number so a failure is a swap and not an outage. See the Juniper EX4300 listings.
- Buy more of what you already run. Matching hardware keeps one software image, one set of optics and one spares pool across the site.
- Sell what you retire. When the replacement goes in, send us the list and we will quote the pull.
Every unit we ship is tested in-house first and carries our warranty. If the part number you need is not listed, request a quote and we will check the warehouse.
