Features: Reading Speed 24x speed CD-ROM 8x speed DVDROM Writing Speed 24x speed CD-RW Features: Reading Speed24x speed CD-ROM 8x speed DVDROM Writing Speed24x speed CD-RW 10x speed CD/DVD Compatible with:DELL LATITUDE CP, CPi, CPiA, CPiD, CPiR, CPt, CPtc, CPtS, CPtV, CPxH, CPxJ, C400,C500, C510, C600, C610, C620, C640, C800, C810, C820, C840 SERIES. DELL INSPIRON2000, 2100, 3700, 3800, 4000, 4100, 4150, 8000, 8100 & 8200 SERIES OPTIPLEX SX270

24X COMBO for Dell C Series