The hp h221 host bus adapter hba is compatible with select hp proliant gen8 rack servers and tower servers and provides customers with the flexibility and speed they have come to expect from hp it features eight external sas ports two 4x external connectors that now support hp sas tape drives as well as 6gbs sas and sata hard drives with second generation performance the h221 hba has been optimized for connection to the hp p2000 g3 sas modular smart array d2000 and d6000 disk enclosures