652A CD-ROM 52x Bulk Black Panel IDE Disk size 80mm/120 mm Sustained 7800KB/secBurst 33.3MB/sec UDMA Buffer size 128KB AGC/AOC Access Time 90 ms

Flash Memory provides an easy solution for you to upgrade the software in your BenQ drive. Not only improving the performance of the drive but also by adding support for the latest standards and types of CD media.
Ultra DMA 33.3MB/sec Data Transfer Rate is an upgrade of the Ultra ATA interface enabling an increased performance of speedier data transfer. In addition to increasing throughput, Ultra DMA/33 improved data integrity by using a Cyclic Redundancy Check (CRC) to flag any data transfer errors that may be made.
Disk formats: CD-audio, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form 2), CD-Plus, CD-i / FMV, Video CD, Photo CD (single- & multi-session), I-TRAX enhanced CD, Karaoke CD, CD-R, CD-RW.
Power Requirement: DC 5V +/- 5%, 1.2A Max; DC12V +/- 5%, 1.0A Max.

BenQ CD 652A, 0.125 MB, 33.3 MB/s, OS: Windows 95/98/ME/NT 4.0/2000/XP, 52x, 90 ms, 1 kg

BenQ CD 652A. Drive device, buffer size: 0.125 MB, Burst transfer rate: 33.3 MB/s, Compatible products: OS: Windows 95/98/ME/NT 4.0/2000/XP. CD read speed: 52x. Access time: 90 ms. Weight: 1 kg. Dimensions (WxDxH): 148 x 198 x 42 mm, Sustained data rate: 7.8 MB/s