HP 1U Rack-Mount Kit ONLY - No tape drive is installed. Available in SCSI, SAS and USB interfaces, the 1U Rack-Mount Kit accommodates up to two half-height internal tape drives and supports a range of tape technologies, including DAT, DLT VS, and half-height Ultrium, with a maximum capacity of 1.6 TB using two Ultrium 920 drives, at a 120 MB/s.