http://www.newegg.com/Product/Produ...216002&cm_re=mini_raid-_-16-216-002-_-Product http://american-media.com/DS-2250J.pdf well it is a newer piece of gear came out in 2010. uses a different raid engine. The JMB393 CHIPSET. IT IS SMALL low cost. I may buy it and test it out. uses 2.5 inch drives. 5 wd scorpio blacks run about 300 bucks and this is 130. if you get fast read /write over 200mb/s it may be a good piece of gear for some.