Home > Data Protection > PowerProtect DD Series Appliances > Dell PowerProtect Data Domain DD9410 and DD9910 > Hardware assisted compression card
Hardware assisted compression cards are used for compression and decompression. In the new models, the hardware assist technology card is integrated with the CPU. In the DD9410, there are two hardware assist technology cards per socket for a total of four. In the DD9910, there are four hardware assist technology cards per socket for a total of eight devices.