Lenovo 4X97A59730 SR635/SR655 M.2 Cable KIT

Lenovo 4X97A59730 SR635/SR655 M.2 Cable Kit

Overview

The Lenovo 4X97A59730 is an M.2 cable kit designed to enable or extend M.2 storage connectivity inside Lenovo ThinkSystem rack servers. If you're adding an M.2 drive to a server that shipped without the cable harness pre-installed, this kit closes that gap — without it, the drive bay is physically present but electrically disconnected. The 4X97A59730 ships factory-new and is sourced as a genuine Lenovo server option, not a third-party substitute.

Compatibility

This cable kit is specified for the Lenovo ThinkSystem SR635 and SR655 1U and 2U rack server platforms. Both are AMD EPYC-based systems in Lenovo's ThinkSystem portfolio. Do not install this kit in SR630, SR650, or other Intel-based ThinkSystem models — M.2 cable routing and connector pinouts differ across server families and cross-platform use risks electrical incompatibility. Verify your server's existing M.2 backplane and riser configuration before ordering; some SR635/SR655 configurations ship with the cable pre-installed, making this kit redundant.

Installation Notes

M.2 cable installation in ThinkSystem servers requires powering down and disconnecting the server from all power sources before opening the chassis. Route the cable per the server's hardware maintenance manual to avoid pinching against drive cages or airflow baffles — improper routing can obstruct the front-to-rear airflow path critical to thermal management in 1U/2U chassis. The kit weighs 1.15 lb and fits within an 11.00 × 10.00 × 2.00 in envelope, consistent with a multi-cable harness assembly rather than a single thin cable. Consult the SR635/SR655 server accessories documentation or Lenovo's hardware maintenance guide for torque specs on the M.2 retaining screw and connector seating confirmation steps.