Broadcom P411W-32P Summary for Direct Attached Devices
This is the latest working firmware:
https://docs.broadcom.com/docs/P411W-32P_4_1_2_1_HBA_signed_P14.2.fw.zip
Firmware newer than v4.1.2.1 requires a UMB backplane before it will detect anything storage related.
Be careful about drivers - it’s perfectely fine to let Windows track them down for you.
Edit:Windows 11 appears to be a different process. Caution is advised!!
These cables work at PCIE 4 speeds:
| Manufacturer | MPN | Cable Description | Adapter Connector | Backplane Connector |
|---|---|---|---|---|
| Broadcom | 05-60001-00 | x8 8654 to 2x4 8612, AltWiring 1M | 1 x8 SFF-8654 Slimline | Two x4 SFF-8612 OCuLink |
| Broadcom | 05-60002-00 | x8 8654 to 2x4 8643 (W), SMC 1M | 1 x8 SFF-8654 Slimline | Two x4 SFF-8643 Mini-SAS HD |
| Broadcom | 05-60004-00 | x8 8654 to 2x4 8654, 9402 1M | 1 x8 SFF-8654 Slimline | Two x4 SFF-8654 Slimline |
| Broadcom | 05-60005-00 | x8 8654 to 2xU.2 Direct, 1M | 1 x8 SFF-8654 Slimline | Two U.2 SFF-8639 |
| Broadcom | 05-60006-00 | x8 8654 to 8xU.3 Direct 1M | 1 x8 SFF-8654 Slimline | Eight U.3 SFF-8639 |
| Broadcom | 05-60007-00 | x8 8654 to 1x8 8654, 9402 1M | 1 x8 SFF-8654 Slimline | One x8 SFF-8654 (SlimSAS) |
| HighPoint | TS8I-8639-060 | x8 8654 to 2xU.2 Direct, 60CM | 1 x8 SFF-8654 Slimline | Two U.2 SFF-8639 |
| Micro SATA Cables | OCU-1708-GEN4 | x4 8611 OcuLink to x4 8611 OcuLink, 50CM | 1 x4 SFF-8611 OcuLink | One x4 SFF-8611 OcuLink |
Adapters and Backplanes that work at PCIE 4 speeds:
Icy Dock EZConvert M.2 to 2.5" U.2 SSD Adapter MB705M2P-B
Icy Dock 4x U.2 backplanes MB699VP-B 2 and MB699VP-B V2
SSD wise… Just pick one.
Or 32 of them…
Edited to remind folks not to update past a certain firmware version.