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 2.0, 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 it's security, capacity, speed or a combination. With burst transfer rates as high as 165MB/s (eSATA), it's ideal for audio/video projects. The sturdy heat sink metal design provides 60% more surface area for natural heat dissipation.