Got two of these units as both my wife's and Son's desktop PC's DVD/CD drives were shot. The drives came as an OEM in a brown box, without a SATA cable or any screws - the latter is annoying if you don't have a screwless case, but fortunately as I was replacing drives I could re-use the old screws and cable which were in good condition. The drives fitted very easily, can work horizontally or vertically, and have a standard 150 MByte/s SATA-1 interface, with an internal cache of 2MB.
Its a modern SATA/Serial-ATA power-plug drive, so you may need a SATA power converter as well for the PSU's power cable. There wasn't an install guide or manual or Nero/LightScribe writing software supplied [although you can get the manuals, basic LightScribe software and the latest Windows firmware upggrade free on the internet, and Windows can do basic DVD/CD writing these days]. For disk burning I already had Nero Multimedia Suite 11 in any case, although its main rival, CyberLink Media Suite is also highly rated. Although this drives capable, I don't often use LightScribe [which laser burns cool silvery 'labels' onto the top of DVD/CDs], as the special LightScribe capable disks and burning software is quite expensive and slow.
This optical drive writes DVD-R & DVD+R's at a blistering 24x and DVD-+RW at 6-8x, with CDR at 48x and CDRW at 42x. Rewritable DVD-RAM writes at 12x, although it can't take a DVD-RAM in a caddy. So it's very fast, and because of that it can sound a bit like a helicopter whirring up, and it is noticeably louder than our CPU fan when idling [but this means it does transfer data noticably faster than our old DVD drive as well]. If you want basic burning software, screws and a cable go for a retail version. Otherwise this OEM version offers a fast, solidly made Sony Optiarc drive, and at under twenty pounds is great value [so 5*]. One year on, both DVD drives are working perfectly.