The HP 12 Gb SAS Expander Card provides servers with internal storage scalability by allowing
support for more than eight internal hard disk drives when connected to a Gen9 supported
Smart Array or Smart Host Bus Adapter controller.
The Expander Card is ideal for users who want to RAID more than eight internal hard disk drives
or add an additional internal drive cage and RAID across all the internal drives. The drives
attached behind the Expander Card are managed by the supported Smart Array Controller or
Smart HBA. The Expander Card dynamically optimizes the bandwidth of existing 6 Gb/s drives
to match the 12 Gb/s speed in a mixed environment of 6 Gb/s and 12 Gb/s drives.
A server-specific Expander Card kit will be available for ProLiant DL380, ML350, and DL180
servers.