You've got an ST45 V3 and the internal cabling's either missing or you're swapping boards and need a clean set. This is the 545-8i cable kit — the exact run Lenovo built for that model. Seat the connectors, route it through the chassis, done. No hunting through a box of generic cables hoping one actually fits
| brand | Lenovo ISG |
| model | ThinkSystem ST45 V3 |
| part_reference | 545-8i |
| category | Cable Kits |