NOTE: Above drives for use with SAS/SATA Hot Plug models only. The purchase of SAS HBA or array controller is required.
HP 8 Internal Port SAS HBA with RAID NOTE: For use with Hot Plug SAS/SATA models. Required only when upgrading from a non-hot plug to a hot plug model. NOTE: The selection HP 8 Internal Port SAS HBA with RAID requires the purchase of the PCI-X Riser Option kit (P/N 409347-B21)