Lenovo 4C57B04994 Toolless Stab-in Slide Rail KIT V3

Lenovo 4C57B04994 Toolless Stab-in Slide Rail Kit V3

Overview

The Lenovo 4C57B04994 is a toolless stab-in slide rail kit designed for rack-mounting Lenovo servers and storage systems without requiring separate fasteners or rail hardware. The V3 designation indicates a third-generation design iteration. At 10 lb, this kit delivers the structural hardware needed to seat and slide a server chassis into a standard rack enclosure — eliminating the need for a screwdriver during rail installation, which reduces deployment time in high-density data center environments where repeated server swaps are common.

Compatibility

This rail kit is designed for use with Lenovo ThinkSystem rack-mount servers. Verify compatibility against your specific ThinkSystem model's rack accessory matrix before ordering — Lenovo rail kits are generation- and chassis-specific. Consult the Lenovo server rack accessories catalog or the compatibility matrix in your server's Installation Guide to confirm fitment. This kit is sourced from standard distribution channels and is compatible with industry-standard EIA-310 rack enclosures where the target server model is also rated for use.

Installation Notes

The toolless stab-in mechanism engages directly with rack rail mounting holes — no cage nuts or additional fasteners required at the rail-to-rack interface. Verify your rack's hole pattern (square, round, or threaded) matches the stab-in tab design before installation. Confirm rack depth falls within the supported range for the target server chassis. Country of origin is Mexico (MX); UNSPSC code 43211600 classifies this as a computer equipment component.