The buffalo drivestation quad is a high performance multimedia usb 30 external hard drive perfect for the home or small office that requires large amounts of storage space the unit is a four drive four bay raid enabled drive with raid 0 for performance and raid 5 or 10 for redundant storage the drivestation quad gives additional storage to quickly backup all your multimedia files with data transfer speeds of up to 300mbs compatible with windows server 20032008 and available with nov