Lenovo 4C57A82402 ST650 V3 3.5-Inch SAS/SATA 4-Bay Backplane Kit
Overview
The Lenovo 4C57A82402 is a 4-bay 3.5-inch drive backplane kit designed to expand internal storage capacity in compatible Lenovo ThinkSystem rack servers. When your ST650 V3 deployment needs additional spinning-disk or SAS SSD bays — for bulk surveillance footage retention, backup repositories, or tiered storage configurations — this kit provides the physical backplane infrastructure to support that expansion. The 4C57A82402 connects via SAS and SATA interfaces, giving you the flexibility to mix drive types across the four bays depending on workload requirements. At 10 lb, this is a substantial kit that includes the backplane assembly rather than a lightweight bracket or cable-only accessory.
Compatibility
This backplane kit is designed specifically for the Lenovo ThinkSystem ST650 V3 tower server. The ST650 V3 is Lenovo's dual-socket tower platform targeting workloads that benefit from large internal drive counts — including local NVR-class video storage, file servers, and edge compute nodes. The 3.5-inch bay format means this kit targets high-capacity HDDs (NLSAS, SATA) or 3.5-inch SAS drives rather than 2.5-inch SSDs. Verify your ST650 V3 chassis configuration and existing backplane layout before ordering — the ST650 V3 supports multiple storage bay configurations, and backplane kits are bay-position-specific. Consult the server components category for compatible drive options and server accessories that pair with this platform.
Installation Notes
Backplane installation in the ST650 V3 requires partial disassembly of the drive cage. Confirm the target bay position is unpopulated and that your system's SAS/SATA HBA or onboard controller has available ports to connect the new backplane's cable harness. SAS expanders and cabling are not included — verify your controller's port count against total backplane demand before installing. Country of origin is Mexico.
