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Stackable access switch · Fiber (SFP/SFP+) SKUs

WS-C3850-12XS

Catalyst 3850 Series — 12-port SFP+ (10G)

SUPPORTED
10 mo
of runway remaining

Lifecycle position

now
availableend of saleservice
AvailableJan 2013
End of saleApr 2022
End of serviceApr 2027Cisco bulletin ↗
Last security firmwareIOS XE 16.12.x

Options from here

Third-party maintenance

Covered past the OEM cutoff by an independent maintainer.

Pre-stock spares

Modules and units still circulate on the secondary market.

Schedule migration

Carrying production traffic? Set the replacement window now, not mid-outage.

Run to failure

Low-criticality role — document the risk, harden backups, retire on your terms.

Other SKUs in 3850 Series

WS-C3850-12S12-port SFP›WS-C3850-24S24-port SFP›WS-C3850-24XS24-port SFP+ (10G)›WS-C3850-48XS48-port SFP+ (10G)›WS-C3850-24T24-port copper›WS-C3850-48T48-port copper›WS-C3850-24P24-port PoE+›WS-C3850-48P48-port PoE+›

WS-C3850-12XS — questions

Is the Cisco WS-C3850-12XS still supported?

Yes, for now. Cisco's last date of support for WS-C3850-12XS is Apr 2027, per the Cisco end-of-life bulletin.

When did the WS-C3850-12XS reach end of sale?

WS-C3850-12XS reached end of sale Apr 2022, per the Cisco end-of-life bulletin.

What is the last date of support (EOSL) for the WS-C3850-12XS?

Apr 2027, according to the Cisco end-of-life bulletin.

Can the WS-C3850-12XS be maintained after Cisco support ends?

After the last date of support, WS-C3850-12XS units can often be kept in production through third-party maintenance providers. Cisco no longer issues software fixes, TAC support, or hardware replacement for it.