Cisco SG300-28-K9 End of Life & End of Support
Cisco Small Business 300 Series Managed Switch (SG300-28)
Past Last Date of Support (May 31, 2022)The Small Business 300 Series were affordable Layer 2/3 managed switches aimed at small offices, sold in Fast Ethernet and Gigabit port densities with PoE options. Cisco now steers buyers to the Cisco Business 350 line, with the CBS350-24T-4G as a direct modern equivalent.
Cisco SG300-28-K9 lifecycle milestone dates
- End-of-Sale Date
- May 31, 2017
- Last Date of Support (LDoS)
- May 31, 2022
Dates per Cisco’s official End-of-Sale/End-of-Life bulletin. Verify against your support contract before acting.
Running past End-of-Sale or Last Date of Support means no new Cisco TAC, hardware replacement, or security fixes. Uniqcli, an authorized Cisco partner, scopes a like-for-like or better replacement, confirms TAA compliance, accepts the Government Purchase Card (GPC), and plans a low-risk cutover.
Compare SG300-28-K9 vs its replacement → · Prefer to keep it running? Renew SmartNet / support instead →
Frequently asked questions
When is the Cisco SG300-28-K9 end of life?
Cisco announced End-of-Sale for the SG300-28-K9 effective May 31, 2017. The Last Date of Support (LDoS) is May 31, 2022, after which Cisco no longer provides support. It is past its last date of support.
What replaces the Cisco SG300-28-K9?
Cisco's recommended migration is the Cisco Business 350 Series Managed Switch (CBS350-24T-4G). Uniqcli, an authorized Cisco partner, can quote the replacement TAA-compliant and GPC-payable, and help plan the cutover.
Can I still get support for the SG300-28-K9?
No. The SG300-28-K9 passed its Last Date of Support (May 31, 2022), so Cisco TAC and hardware replacement are no longer available. Uniqcli can review your install base, confirm coverage, and quote a refresh.