The SATA RAID Back Plane system is an internal drive housing that supports five SAS / SATA hard Drives. It can be installed into any suitable PC case or expansion system which has three 5.25" half-height drive bays available. The system is ideal for servers or workstations, allowing instant hot-swap access to the hard drives. The Back Plane features a unique connection mechanism which allows the drives to be mounted directly into the back plane without the need for a separate caddy. A special 'no-scratch' connector protects the drive contacts & is tested to exceed over 10, 000 insertions & ejections.