405836-001 - HP 256MB Battery Backed-Write Cache Memory Board for Smart Array P400 Controller

Here are the technical specs for the HP 256MB Battery Backed-Write Cache Memory Board for Smart Array P400 Controller:

- Capacity: 256MB
- Interface: PCI Express x8
- Data Transfer Rate: 4.2 GB/s
- Cache Memory Type: SDRAM
- Battery Type: Lithium ion
- Dimensions (WxDxH): 6.6 cm x 16.8 cm x 1.5 cm
- Weight: 68 g

Helpful notes:
- This memory board improves performance and protects data in case of power loss.
- It is compatible with HP Smart Array P400 and P800 RAID controllers.
- The battery-backed cache ensures data is saved even during a power outage.