Eight 2.5-inch drives, no backplane, and a server that can't see a single disk. That's the gap this kit closes. It's the 8x2.5" SAS/SATA backplane option kit for the SR650/a V4 — the connector board that sits between your drive caddies and the HBA or RAID controller on the motherboard. You drop it in, slide eight drives onto it, and your storage array is visible in the BIOS within a minute. No hunting for a compatible third-party board. No pinout mismatches. It's the part Lenovo made for this exact chassis
| brand | LENOVO ISG |
| category | SERVERS |
| subcategory | LENOVO CABLE KITS |
| compatible_system | Lenovo ThinkSystem SR650/a V4 |
| drive_bays | 8x 2.5-inch |
| interface | SAS/SATA |
| kit_type | Backplane Option Kit |
