HP 413458-001 | 128MB Battery Backed Write Cache for Smart Array 641/642

Technical specs:
- Capacity: 128MB
- Interface: Battery Backed Write Cache (BBWC)
- Compatible with: Smart Array 641/642 controllers
- Dimensions: 3.5 x 7.5 x 1.5 inches
- Weight: 0.5 pounds

Helpful notes:
1. The BBWC provides additional protection against data loss in case of power failure.
2. This cache module can improve the performance of the Smart Array controllers.
3. Make sure to check compatibility with your specific server model before purchasing.