Ports and uplinks
- 12 × SFP (1G)
- Modular uplink options
Product
Catalyst 3850 12-port 1G SFP fiber aggregation switch with IP Services (-E).
WS-C3850-12S-E aggregates twelve 1G SFP optical links on Catalyst 3850 IP Services. It lists 68 Gbps, 68.4 Mpps, Non-PoE, modular uplink options, and PWR-C1-350WAC.
Choose it when southbound optics are 1G SFP and density near twelve ports is enough. Prefer 12XS when optics are already 10G SFP+.
Key specifications for this model.
| Model | WS-C3850-12S-E |
|---|---|
| Manufacturer model | WS-C3850-12S-E |
| Display model | WS-C3850-12S-E |
| Network role | Aggregation |
| Port count | 12 |
| Downlink / data ports | 12 × SFP ports |
| Uplink ports | C3850-NM-4-1G or C3850-NM-2-10G — confirm on quote |
| Port type | SFP |
| Port speed | 1GE SFP |
| Switching capacity | 68 Gbps |
| Forwarding rate | 68.4 Mpps |
| PoE | Non-PoE |
| Stacking | Up to 9 members — confirm stack kit |
| Power supply | PWR-C1-350WAC |
| Weight | 15.48 lb (7.02 kg) |
| Availability | Quote on request |
Smaller optical aggregation domains with 1G SFP.
3850 IP Services stacks needing a 12S member.
If southbound is 10G, do not buy 12S as a substitute for 12XS.
Not a 10G SFP+ aggregation switch.
Not a PoE copper access switch.
Same-brand family first, then same deployment role, then cross-brand equivalents when useful. Different power/optic technologies are labeled explicitly.
12 × SFP ports.
68 Gbps and 68.4 Mpps.
1G SFP downlinks. Use 12XS for 10G SFP+.
IP Services (-E).
Exact PID, NM, optics, stack kit, quantity, destination.
Non-PoE.
Share quantity, preferred condition, and deployment requirements. For exact configuration and availability, request a quote.