Sliding rail kit Dell 3YWX4 for 2U rack server — rail mounting accessory

The Dell 3YWX4 sliding rail kit for 2U rack servers is a rail mounting accessory that enables secure installation and convenient service access for compatible Dell servers in standard 19" racks. The kit contains left and right telescopic rails designed to support a 2U server chassis, allowing the server to slide out smoothly for maintenance, cabling or inspection while remaining properly supported inside the rack.

Advantages

This sliding rail kit provides stable support and controlled extension for 2U servers, reducing the need to fully remove equipment from the rack during service. The rails are engineered for compatibility with compatible Dell chassis and standard rack mounting depths, and they enable tool-less or minimal-tool installation depending on the rack configuration. Smooth sliding action improves access to rear connectors and internal components, and the rails help maintain alignment and load distribution when the server is extended.

Suitable for

• Mounting and servicing 2U Dell rack servers in 19" server racks
• Data center and server room environments requiring frequent maintenance access
• IT closets and network cabinets where reliable slide-out access is needed

Key specifications

• Form factor compatibility: 2U rack-mount server chassis
• Rack type: standard 19" equipment racks and cabinets
• Rail configuration: left and right sliding/telescopic rails
• Installation: designed for rack-mounted installation with tool-less or simple fastening methods depending on rack
• Function: supports smooth extension for maintenance and access to rear/internal components

How to use

Install the left and right rails into the matching rack uprights according to the rack depth and the rail mounting points. Secure the rails to the rack using the appropriate fasteners or tool-less clips supplied by the rack or kit, then slide the server chassis into the rails until it engages with the rail stops. Verify that the rails allow smooth extension and retraction and that the server is held firmly in place. When servicing, extend the server along the rails to access internal components or rear I/O, and retract the unit back into the rack when work is complete.

Usage recommendations

Verify compatibility between the sliding rail kit and the specific Dell server chassis model before installation. Check rack depth and mounting hole patterns to determine whether additional brackets or adapters are required. Follow standard safety practices for racked equipment: power down or follow hot-swap procedures as appropriate, use proper lifting techniques or assistance when handling heavy servers, and ensure cables are managed to avoid strain during rail extension.