Super Link technology to avoid Buffer Under Run error 52x maximum read speed 4x 8x 12x 16x 20x CLV & 24x 32x 40x 48x 52x PCAV write speed for CD-R4x 8x 12x 16x CLV24x PCAV for CD-RW disc Average access time is around 90 ms typical High speed 20x audio play buffered to normal audio Maximum 48x CAV audio extraction Internal 5.25-inch half-height CD-Recordable & CD-Re Writable drive Compatible with MS-DOS Windows NT2000 Windows 9598MEXP Linux OS2 Warp This CD-RRW drive is an internal type 5.25-inch half-height IDEATAPI interface & has read speeds up to 52x & write up to 52x & re-write speeds up to 24x. The mechanism using the double-suspension technology makes the drive able to handle seriously unbalanced disks with less vibration & acoustic noise. Further more the drive utilizes the stepping motor to achieve the random access time less than 90ms.