The lacie 3tb d2 quadra v3 hard drive is a versatile storage unit thats designed for instantly storing sharing and backing up your images from either a pc or mac with the new usb 30 5gbs interface and up to 3tb the d2 quadra is an ideal tool for creative professionals who need both fast speeds and large storage capacity the d2 quadra has got the latest connectivity with usb 30 and two firewire 800 interfaces for daisy chaining but it is still fully compatible with esata 3gbs usb 20