Lenovo 4XH7A87640 SR645 V3 2X2.5IN Sas/sata BP Option KIT

Lenovo 4XH7A87640 SR645 V3 2x2.5-in SAS/SATA Backplane Option Kit

Overview

The Lenovo 4XH7A87640 is a factory-new backplane option kit that adds two 2.5-inch SAS/SATA drive bays to the ThinkSystem SR645 V3 rack server. If your SR645 V3 deployment calls for additional local storage — whether for OS boot drives, write-intensive cache, or NVMe-adjacent SAS capacity — this kit provides the physical interface infrastructure to support it without requiring a platform change. The 10 lb assembly is manufactured in Mexico to Lenovo's commercial-grade production standards.

Compatibility

The 4XH7A87640 is designed specifically for the Lenovo ThinkSystem SR645 V3 server platform. It supports both SAS and SATA 2.5-inch drive form factors, giving you flexibility to mix SAS HDDs, SAS SSDs, or SATA SSDs in the added bays depending on your workload requirements. Confirm your SR645 V3 chassis configuration and available backplane slots against Lenovo's SR645 V3 configuration guide before ordering — not all chassis build-outs support every backplane position without additional hardware.

Installation Notes

Installation is performed inside the SR645 V3 chassis with the server powered down and rack-grounded. Follow Lenovo's ESD precautions throughout — backplane connectors are sensitive to static discharge. Verify that your HBA or RAID controller supports the target drive protocol (SAS versus SATA) before populating the bays post-install. Lenovo's server storage options and the broader Lenovo server catalog can help you confirm compatible controllers and drive options for this platform.