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- Description
- Specifications
Lenovo lists 4Y37A78837 (feature codes BQ3S and BNWK) as the ThinkSystem 440-8e SAS/SATA PCIe Gen4 12Gb HBA, an external host bus adapter with two Mini-SAS HD SFF-8644 connectors carrying 8 ports. It uses a PCIe 4.0 x8 host interface on a low-profile, half-length card.
The controller is the Broadcom SAS3808, and the Broadcom equivalent is the HBA 9500-8e. Lenovo lists JBOD mode only, with no RAID levels, no cache and no CacheVault protection.
Each port runs at up to 12 Gbps, supporting 12, 6 and 3 Gbps SAS and 6 and 3 Gbps SATA, and up to 1024 external SAS or SATA devices can be attached. Hot-swap HDDs, SSDs and SEDs are supported, with SED commands passed through to the drives.
Lenovo gives ThinkSystem DE Series storage and LTO9 tape drives as the external targets. The adapter supports the SSP, SMP, STP and SATA protocols, end-to-end CRC, S.M.A.R.T. and Disk Data Format (DDF) configuration.
The adapter ships with a full-height (3U) bracket attached, a low-profile (2U) bracket and a documentation flyer. The 16-port sibling, 4Y37A09724 (B8P7), uses four connectors and the Broadcom SAS3816.
Related options sit in the Lenovo interface card category, such as the Lenovo ThinkSystem 430-8e SAS/SATA 12Gb HBA.
| Option part number | 4Y37A78837 |
| Feature codes | BQ3S / BNWK |
| Adapter type | HBA |
| Controller | Broadcom SAS3808 |
| Broadcom equivalent | HBA 9500-8e |
| Host interface | PCIe 4.0 x8 |
| Ports | 8 x 12 Gb SAS/SATA |
| Connectors | 2x Mini-SAS HD SFF-8644 |
| Maximum devices | 1024 |
| RAID levels | none (JBOD mode) |
| Cache | none |
| Form factor | low profile, half length |