magnaroute Fan Kit compatible with all Cisco Catalyst 2950 Series 12 and 24 Port Switches Wires are properly trimmed and crimped - ready to install. We use only brand new top tier fans (unless noted in the product description) from Delta, Sunon, NMB, and PSC. Guaranteed to meet or exceed original manufacturer airflow and pressure requirements. Quality of materials can only be guaranteed when purchasing from the manufacturer's (magnaroute LLC) offer on Amazon. Compatible with Cisco P/Ns: WS-C2950-12, WS-C2950-24, WS-C2950C-24, WS-C2950G-12-EI, WS-C2950G-24-EI, WS-C2950G-24-EI-DC, WS-C2950SX-24, WS-C2950T-24.