Your ST650 V2's 3.5" bays are throwing link errors or the drives just won't stay stable under load. The retimer cable kit keeps the SAS signal clean over that run so your array stops flapping. Swap it in, reseat the caddy, and the controller holds a solid link
| brand | LENOVO ISG |
| compatible_system | ThinkSystem ST650 V2 |
| bay_size | 3.5" |
| cable_type | Retimer |
| category | SERVERS |
| subcategory | LENOVO CABLE KITS |