HP RM435i, Black, Serial ATA, 48x, 140 ms, 120 ms, 15 - 80% HP RM435i. Product colour: Black. Interface: Serial ATA. CD read speed: 48x. DVD drive average random access time: 140 ms, CD-ROM drive average random access time: 120 ms. Power requirements: 5V+/-5%; 12V+/-10%, Minimum system requirements: 1.3 GHz Pentium IV, Minimum RAM: 128 MB