Hello David,
The part# is for a Dell PowerEdge 6 Gbps SAS HBA and Internal Tape Adapter. Here is a link to the user’s guide for that card & if you look on page 9 it lists out the specs for the card. ftp://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_dell_adapters/dell-sas-hba-6gbps_User%27s%20Guide_en-us.pdf
Please let us know if you have any other questions.