4Y37A78601: Lenovo ThinkSystem 440-8i SAS/SATA PCIe Gen4 12Gb HBA
Also listed as: BM51
ThinkSystem 440-8i SAS/SATA PCIe Gen4 12Gb HBA. Listed by Lenovo as a host bus adapter for the ThinkSystem ST50. The pairing comes from the vendor product guide, which also gives the quantity limits and any controller, firmware or slot requirements. Check those rules and the part number suffix before buying a used unit.
Specifications
| Part number | 4Y37A78601 |
|---|---|
| Brand | Lenovo |
| Type | HBAs |
| Other numbers | BM51 |
| Interface | SAS |
| Speed gbps | 12 |
| Vendor description | ThinkSystem 440-8i SAS/SATA PCIe Gen4 12Gb HBA |
Fits these models
Check compatibility with Lenovo
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Lenovo has tested with the Lenovo 4Y37A78601.
- Compatibility Lenovo ServerProven (options and OS compatibility)
- Specifications Lenovo Press product guides
- Support Lenovo Data Center Support
Buying or selling 4Y37A78601?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Lenovo ThinkSystem ST50 Server (E-2100) Product Guide (withdrawn product), checked 2026-10-28