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- Description
- Specifications
Lenovo lists 4Y37A79663 (feature code BM8X) as the ThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter, also named an Enablement Kit by Lenovo. It takes one or two M.2 drives, either SATA or NVMe, and the drives are not hot-swap. With two drives installed, both must be SATA or both NVMe.
Drive lengths of 42, 60, 80 and 110 mm are supported (2242, 2260, 2280 and 22110). Each drive connects at either 6Gbps SATA or PCIe 4.0 x4, depending on the drive installed, and Lenovo lists NVMe support at x4.
The adapter has no integrated RAID. RAID comes from VROC on Intel servers or from a separate PCIe RAID adapter, and SED encryption works only when it is connected to such an adapter.
Lenovo lists event and temperature monitoring through I2C, and firmware updates through Lenovo's firmware update tools.
The related x1 NVMe adapters are the 4Y37A90063 B540i-2i RAID adapter and the 4Y37A09738 SATA/NVMe 2-bay enablement kit (B5XJ).
Alternatives to 4Y37A79663 are in the Lenovo interface card category.
| Option part number | 4Y37A79663 |
| Feature code | BM8X |
| Drives supported | 1 or 2 M.2, SATA or NVMe |
| Hot-swap | No |
| M.2 lengths | 2242, 2260, 2280, 22110 |
| Drive interface | 6Gbps SATA or PCIe 4.0 x4 |
| NVMe | Yes (x4) |
| RAID | none (VROC on Intel servers or separate RAID adapter) |
| Monitoring | events and temperature via I2C |