Lenovo 4XB7A80583 SR950 2.5 Sas/sata/nvme 2X2 BP KIT V2

Lenovo 4XB7A80583 SR950 2.5" SAS/SATA/NVMe 2x2 Backplane Kit V2

Overview

The Lenovo 4XB7A80583 is a V2 dual 2x2 backplane kit designed for the ThinkSystem SR950 server, covering 2.5-inch drive bays with tri-protocol support — NVMe, SAS, and SATA. If you're expanding or reconfiguring SR950 storage, this kit provides the physical backplane infrastructure needed to support mixed drive populations without committing to a single protocol. Tri-protocol flexibility means a single backplane kit can serve NVMe SSDs for high-throughput workloads, SAS drives for enterprise reliability, or SATA drives for cost-sensitive bulk capacity — eliminating the need to swap backplanes when storage strategy changes. The kit weighs 2.00 lb, making it a straightforward field-replaceable unit for qualified data center technicians.

Compatibility

This backplane kit is designed specifically for the Lenovo ThinkSystem SR950 4-socket enterprise server platform. The 2x2 configuration maps to SR950 2.5-inch drive bay expansion; it is not interchangeable with SR850, SR650, or other ThinkSystem models that use different backplane form factors and connector layouts. Verify your SR950 chassis revision and bay configuration against Lenovo's SR950 storage option compatibility matrix before ordering — V2 designation indicates a hardware revision that may not be backward-compatible with original SR950 backplane configurations. This kit falls within the UNSPSC category 43211600 (computer storage devices), consistent with server storage infrastructure components. Consult your SR950 configuration guide to confirm slot mapping before installation.

Installation Notes

Installation requires SR950 chassis access and alignment with the designated 2.5-inch bay slots. The 2x2 layout means each backplane segment supports two drive positions per connector row — verify cable routing and SAS/NVMe cable compatibility with your existing SR950 HBA or RAID controller before commissioning. Use Lenovo-specified torque values from the SR950 maintenance manual; backplane connector seating is sensitive to misalignment, which can cause intermittent drive detection failures. No tools beyond standard server servicing kit (T10/T20 Torx, ESD precautions) are typically required for the mechanical swap, but firmware-level storage controller reconfiguration may be needed post-installation depending on drive protocol mix.