Lenovo 4XH7A61121 SR635 2.5 Sas/sata 8-BAY X40 CBL KIT

Lenovo 4XH7A61121 SR635 2.5" 8-Bay SAS/SATA X40 Cable Kit

Overview

The 4XH7A61121 is a factory-specific internal cable kit designed for the Lenovo ThinkSystem SR635 server, enabling the 2.5" 8-bay SAS/SATA drive backplane to communicate with the X40 storage controller. If you're configuring or rebuilding drive connectivity on an SR635 — whether adding a storage expansion, replacing damaged cabling, or wiring a fresh chassis — this kit provides the exact routing harness the platform requires. Using off-spec or generic SAS cables in rack servers risks signal integrity issues and unsupported configurations; the 4XH7A61121 keeps the build within Lenovo's validated BOM.

Compatibility

Designed specifically for the Lenovo ThinkSystem SR635 server platform. The kit targets the 2.5-inch 8-bay drive bay configuration paired with the X40 storage controller. Verify your SR635 chassis bay count and backplane type before ordering — the SR635 ships in multiple storage configurations, and cable kits are not interchangeable across bay counts or backplane variants. This kit does not apply to SR635 V2/V3 variants or other ThinkSystem models (SR655, SR645, SR665) without confirmation from Lenovo's compatibility matrix. Interface support covers both SAS and SATA — so the same cable assembly works whether your drive population is SAS HDDs, SATA HDDs, or SATA SSDs, eliminating the need to stock separate harnesses per drive type.