'SFP (100/1000 MBPS)'}
Cisco
Cisco WS-C3750X-12S-S Refurbished - 12-Port SFP Switch
MPN: WS-C3750X-12S-S
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Lifetime
Warranty
ISO 9001
Certified Testing
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested
Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Tested to factory specification. Backed by 25 years of enterprise trust.
The Refurbished Cisco Catalyst WS-C3750X-12S-S is an enterprise-grade stackable Layer 3 switch built for organizations that demand reliable, high-performance fiber connectivity at the distribution or aggregation layer. Equipped with 12 SFP ports, this switch is purpose-built for fiber uplinks and backbone interconnects, making it an excellent choice for campus and data center edge environments.Powered by Cisco's StackWise Plus technology, the 3750X-12S-S supports multi-unit stacking, enabling administrators to manage a stack of switches as a single logical device. This simplifies network management and increases fault tolerance across the infrastructure. The IP Base software license (denoted by the trailing "-S") provides a solid foundation of Layer 2 and Layer 3 routing features suitable for most enterprise deployments, with upgrade paths available to IP Services if advanced routing protocols are required.
This unit is professionally Refurbished and tested to meet original manufacturer performance standards, delivering enterprise reliability at a fraction of the new-unit cost. WhaleyComm sources, inspects, and validates every unit before shipment to ensure you receive dependable hardware ready for deployment.
Whether you're expanding an existing Cisco Catalyst 3750X stack, refreshing aging infrastructure, or building a cost-effective distribution layer, the WS-C3750X-12S-S offers proven Cisco quality backed by decades of enterprise networking leadership—now available Refurbished from WhaleyComm at just $129.00.
Technical Specifications
{'Model Number'
'WS-C3750X-12S-S', 'Brand': 'Cisco', 'Series': 'Catalyst 3750X', 'Condition': 'Refurbished', 'Total SFP Ports': '12', 'Switch Type': 'Stackable Layer 3 Managed Switch', 'Software License': 'IP Base', 'Stacking Technology': 'Cisco StackWise Plus', 'Form Factor': '1U Rack-Mountable', 'Port Type': 'SFP (100/1000 Mbps)'}
Ideal Use Cases
Campus Distribution Layer
Deploy the WS-C3750X-12S-S as a fiber aggregation point in campus network distribution closets, connecting access-layer switches upstream to the core. Its SFP ports and StackWise Plus stacking make it ideal for scaling bandwidth without adding management complexity.
Data Center Edge Connectivity
Use this switch at the data center edge to aggregate fiber connections from servers or storage arrays requiring SFP-based uplinks. The Layer 3 IP Base feature set supports essential routing to keep traffic flowing efficiently between VLANs and subnets.
Infrastructure Refresh on a Budget
Organizations looking to replace aging switches without overspending can leverage this Refurbished unit to maintain Cisco Catalyst standardization across their environment. At $129.00, it delivers enterprise-class performance and stackability at a dramatically reduced total cost of ownership.
What's Included
✔ Cisco WS-C3750X-12S-S Refurbished Switch Unit
✔ Power cable
✔ WhaleyComm inspection and functionality verification
Lifetime Warranty - No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. 25 years, 5,000+ customers.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
The Cisco WS-C3750X-12S-S is compatible with the following platforms and software
✓
- **Cisco Catalyst 3750X Series**: Stacks with other Catalyst 3750X switches using Cisco StackWise Plus stacking modules and cables.
✓
- **SFP Transceivers**: Compatible with Cisco-approved SFP modules for 100/1000 Mbps fiber and copper connectivity (e.g., GLC-SX-MMD, GLC-LH-SMD, and similar Cisco SFP modules).
✓
- **Standard 802.1Q VLANs, STP, RSTP**: Compatible with IEEE standard switching protocols for multi-vendor environments.
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders ship within 1-2 business days.
Returns
Contact support for DOA or warranty issues.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
The "-S" suffix in the model number denotes the IP Base software license, which includes essential Layer 2 switching and basic Layer 3 routing capabilities. Customers requiring advanced routing protocols can upgrade to the IP Services license through Cisco's licensing process.
Yes, the WS-C3750X-12S-S supports Cisco StackWise Plus technology, allowing it to be integrated into an existing Catalyst 3750X stack. A StackWise Plus stacking module and cable are required to complete the stack connection.
The 12 SFP ports support standard Cisco-approved SFP transceivers for fiber and copper connectivity, including common multimode and single-mode fiber modules. It is strongly recommended to use Cisco-branded or Cisco-compatible transceivers to ensure full functionality and avoid software compatibility warnings.
Refurbished means this unit has been professionally inspected, tested, and verified to meet original performance standards before shipment. WhaleyComm's refurbishment process ensures you receive a fully functional switch ready for enterprise deployment at a significantly lower cost than new.
Cisco WS-C3750X-12S-S Refurbished - 12-Port SFP Switch
$129.00
