You need a clean internal SAS run between two slimline x8 ports and the cable in your parts bin is either the wrong length or wrong impedance. This is the one. Thirty centimetres, 85 ohm, STR to STR, internal. Route it, plug it in, done. No adapters, no extension leads
| brand | SUPERMICRO |
| cable_type | Slimline x8 (STR) to Slimline x8 (STR) |
| length | 30cm |
| impedance | 85 ohm |
| connection | Internal (INT) |
| category | SERVERS > SERVER OPTIONS & ACCESSORIES |