This quadruple interface professional 2 disk raid delivers fast speed large capacity and data security with esata 3gbits firewire 800 firewire 400 and hi speed usb 20 it provides complete universal compatibility with any pc or mac the easy to use 2big quadra comes with two extractable lockable and hot swappable disks for a user controlled solution with four raid levels it meets your storage needs whether its security capacity speed or a combination with burst transfer rates as hig