LiteOn SOHC-5235KBLACK 52x-32x-52x CD-RW 16x DVD-ROM Combo Drive Lite-On 52 x 32 x 52 CD-RW &amp; 16 x DVD-ROM IDE Drive General Features: Black bezel 52 x maximum write speed 32 x maximum rewrite speed 52 x maximum read speed 16 x DVD-ROM read speed 2 MB buffer 120 ms access time (CD) 140 ms access time (DVD) Smart Burn buffer under run prevention SMART-X Smart Monitoring &amp; Adjusting Technology Mt. Rainier support Support PIO mode 4, DMA mode 2 and Ultra DMA mode 2