>>1283764
also forgot to mention in addition to the SAS card you'll need specific cables.
the H200i for example uses two SFF8087 plugs, so you would want something like picrel which allows you to plug in four SAS HDDs per connector, for a total of 8 drives on the H200i. they will also need traditional SATA power cables.
if you have a chassis with an expander backplane you can get more drives, i have a H200e (e for external connector as opposed to i for internal) running 12 drives right now.

and one last thing, SATA drives will usually work just fine in a SAS backplane or on a SAS card, so mixing and matching is generally fine.
however a SAS drive will never work on a SATA port and in fact you cannot plug a SAS drive into SATA (but you can plug a SATA drice into SAS)