Just add a drive and go. That’s what the company Ultra is talking about with their new portable, stack-able portable hard drive enclosure features a USB 2.0 and E-SATA interface and supports 3.5″ SATA HDD’s. That’s right – you can use one, or use more – just stack them up and up… and up! The Ultra 3.5″ external hard drive enclosure supports Windows XP, 2000, ME, Vista and Mac 9.0 and above. A built-in cooling fan keeps your hard drive running at maximum performance while protecting it from excess heat. Lay it down, stand it or stack it, it doesn’t matter. No matter how you use this awesome unit which I own 2 of and we have 16 at my job (2 stacks of 8 was the way we went) but honestly it will meet and exceed your highest standards. I guess I could mention it does comes with an external power supply and all USB cables that one would need.
Enclosure Type: for 3.5″ drives
Drive Interface: SATA
Enclosure Interface: USB 2.0 eSATA
USB 2.0 Transfer Rate: 480Mbps
Enclosure Material: Plastic
Dimensions: 4.8″ x 7.25″ x 1.6″