Cisco WS-C3750X-12S-E – 12-Port Gigabit Stackable Switch

What It Is

The Cisco Catalyst WS-C3750X-12S-E is a managed stackable Ethernet switch from the Catalyst 3750X series, designed for enterprise LAN edge deployments. This model provides 12 Gigabit Ethernet SFP ports and runs the IP Services feature set, enabling advanced routing and security functionalities in a compact form factor.

Technical Details

• Model: WS-C3750X-12S-E
• Ports: 12 x Gigabit Ethernet SFP (fiber uplink/module slots)
• Software: IP Services (full Layer 3 routing, including OSPF, EIGRP, and VRF-Lite)
• Series: Catalyst 3750X, supporting StackWise Plus for stacking scalability
• Switching Capacity: Designed for high-performance aggregation in access-layer networks
• Management: CLI-based, SNMP, and Cisco Network Assistant support
• Form Factor: 1U rack-mountable, fixed configuration

Configuration & Options

• Ships with the IP Services license (model suffix -E); alternative IP Base version available as WS-C3750X-12S-S
• Requires separately ordered SFP transceivers (fiber or copper) for port connectivity
• Compatible with optional Cisco StackPower and StackWise cables for redundant power and stacking
• Supports external AC power supply; no PoE capability on this model
• Can be integrated into mixed 3750X stacks with other 12/24/48-port variants

Operating Conditions

This switch is intended for enterprise wiring closets and data center access layers where fiber connectivity is required for uplinks or server connections. It operates in temperature-controlled indoor environments (standard commercial range) and is suitable for 24/7 continuous operation in medium-to-large networks. The IP Services feature set makes it appropriate for routed access deployments or as a distribution layer unit in smaller sites.