Model: CD-ROM 52X Burst Transfer Rate: "PIO mode 4:16.6 MB/s Max , Multi-word DMA mode2:16.6MB/s Max Ultra DMA/33 mode 33.3MB/s Max" Access Time: 80ms typical with 1/3 stroke O/S Compatibility: Windows XP/NT/ME/2000/98E,linux,DOS6.xx Interface: ATAPI/E-IDE Data Buffer: 128KB Disc Formet: "Audio CD, CD-ROM(mode 1&2), Mixed Mode, CD-ROM/XA(mode 2, form 1 &2), Vedio CD, CD-I,Photo CD(single),Karaoke CD,CD Extra, I-Tax, CD-R, CD-RW, CD-Text" Disc Size: 8cm and 12cm Physical Characteristics Mounting Orientation: Vertical and Horizontal(+5~-5) Dimention(H x W x D): 41.5 x 149.0 x 197.5mm(1.63*5.87*7.78 inch) Weight: 997g(2.21b) Power requirements DC: 5V 12V Tolerance: 5% 10% Enviromental Characteristic Temperature: "Operating:5 to 45 Storage:-20 to 60" Humidity: "Operating:15%~80%(Non-condensing) Storage: 15%~85%(Non-condensing)"