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WS-C3750G-12S-S
Cisco WS-C3750G-12S-S Catalyst 3750 12-Port Gigabit SFP Swit...
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WS-C3750G-12S-S is a managed, rack-mount fiber aggregation switch with twelve fixed Gigabit Ethernet SFP interfaces and IP Base software. The Catalyst 3750 configuration provides Layer 2+ routing without native copper access ports or PoE output. Unlike the discontinued WS-C3750G-12S-SD, this model uses AC input rather than DC input.
WS-C3750G-12S-S price for new stock is $1,257.90, a 22.2% saving from the Cisco list price of $1,617.30. WS-C3750G-12S-S refurb price is $95.29. WS-C3750G-12S-S is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-C3750G-12S-S for additional pricing. Browse the full Cisco Catalyst 3750G Switches series or explore all Cisco products.
32 Gbps switching capacity and 17.8 Mpps forwarding distinguish the switching fabric from packet-processing throughput. WS-C3750G-12S-S carries 128 MB DRAM and 16 MB flash. Static routing, RIPv1, RIPv2 and RIPng are available; OSPF, EIGRP and BGPv4 require IP Services rather than the supplied IP Base image.
Specify WS-C3750G-12S-S in new sealed or certified refurbished condition, and identify the required accessories on the purchase order. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, clean boot and optics bay recognition; firmware is verified and configurations are wiped to factory default. New units receive up to a 3-year extended ORM warranty, certified refurbished units up to 1 year, with 30-day returns on every condition; terms apply. ORM Systems accepts POs, offers Net-30 for government and RMA with advance replacement, and supports regional stock and RMA requirements across the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS. |
License Tier | IP Base. |
Port Configuration | 12 x 1G SFP. |
Stacking | StackWise, nine members. |
Lifecycle Status | Cisco support ended January 31, 2018. |
Replacement PID | C9300-24S / WS-C3750G-12S-S-RF, discontinued Cisco refurbishment. |
When extending an existing fiber aggregation stack, account for the two rear StackWise connections separately from the traffic interfaces. Establish the physical cable route and identify available stack connections before ordering. Specify the required cable lengths and confirm the software configuration of the existing members before the PO.
When purchasing replacement stock for existing installations, distinguish new sealed inventory from certified refurbished units on the purchase order. Refurbished units are inspected and bench-tested, with firmware verified and configurations wiped to factory default. Specify the condition and the required UK, EU, US or MEA stock and RMA region.
Active Cisco hardware service coverage
Cisco service for this model ended January 31, 2018. C9300-24S is the current migration endpoint and changes the fiber interface count from twelve to twenty-four.
Native 10G fiber interfaces
The installed SFP interfaces operate at Gigabit Ethernet speeds, and the chassis has no removable uplink card bay. Installing different optics does not create 10G interfaces.
Advanced routing with IP Base
The supplied IP Base image does not provide OSPF, EIGRP or BGPv4. Those routing protocols require the IP Services image rather than the included software tier.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| WS-C3750G-12S-S |  WS-C3750G-48PS-S |  WS-C3750G-48PS-E |  WS-C3750G-24T-E |  WS-C3750G-24TS-S | |
|---|---|---|---|---|---|
| Depth | 326 mm | 409 mm | 409 mm | 326 mm | 295 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Flash Memory | 16 MB | 32 MB | 32 MB | 16 MB | 16 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 2U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 66 mm |
| Manufacturer Part Number | WS-C3750G-12S-S | WS-C3750G-48PS-S | WS-C3750G-48PS-E | WS-C3750G-24T-E | WS-C3750G-24TS-S |
| Memory | 128 MB | 128 MB | 128 MB | 128 MB | 128 MB |
| Power Consumption | 100W at 100% throughput. | 541W | 541W | 98W at 100% throughput | 190W |
| Switching Capacity | 32 Gbps | 32 Gbps | 32 Gbps | 32 Gbps | 32 Gbps |
| Weight | 4.6 kg. | 7 kg | 7 kg | 4.6 kg. | 5.7 kg |
| Width | 445 mm | 445 mm | 445 mm | 445 mm | 445 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
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Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
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WS-C3750G-12S-S identifies a Catalyst 3750 Gigabit configuration: 12 indicates twelve ports, the first S identifies SFP interfaces, and the final S identifies IP Base software.
WS-C3750G-12S-S supports a browser-based device manager, Network Assistant, console CLI, Telnet and SNMP management through CiscoWorks. SSH requires a cryptographic software image.
Yes, WS-C3750G-12S-S reached end of sale January 30, 2013, and its last date of Cisco support was January 31, 2018. Cisco service has ended.
ORM Systems offers WS-C3750G-12S-S new sealed or certified refurbished, with up to a 3-year extended warranty on new units and up to 1 year on refurbished units. Returns are available for 30 days on every condition; terms apply. Cisco's original limited lifetime hardware coverage ended January 31, 2018.
WS-C3750G-12S-S includes IP Base. IP Services is the advanced-routing image upgrade, with CD-3750G-EMI= applicable to this hardware configuration.
StackWise joins nine Catalyst 3750 members. Approved spare cables are CAB-STACK-50CM=, CAB-STACK-1M= and CAB-STACK-3M=; cable selection depends on the physical layout.
No, the twelve-port Gigabit SFP configuration does not provide PoE output. Connected equipment must obtain its power independently of these traffic interfaces.
No, the Catalyst 3750 twelve-port SFP configuration has Gigabit interfaces, not SFP+ interfaces. Different transceivers do not upgrade the chassis interfaces to 10G.
No, WS-C3750G-12S-S uses an internal supply without a second internal PSU bay. External backup options include PWR-RPS2300 and PWR675-AC-RPS-N1=; these are separate equipment.
WS-C3750G-24PS-S provides copper PoE access, while WS-C3750G-12S-S provides SFP aggregation without PoE. Both are discontinued: the former serves legacy powered endpoints, the latter legacy fiber links.
WS-C3750G-12S-S accepts AC input, while WS-C3750G-12S-SD requires DC input and lacks the external RPS connection. Both are discontinued; selection depends on the legacy installation's power source.
C9300-24S has twenty-four Gigabit SFP interfaces, versus twelve on WS-C3750G-12S-S. C9300-24S suits a current migration; the unsupported older model serves existing installations requiring the original hardware configuration.
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