Introducing the TS-RVH4.0TL/R6 Buffalo Terastation NAS, a high-performance network attached storage solution designed to meet the storage needs of small and home offices. This product features a 4x write speed and supports HDD drive types, with a storage capacity of 1TB and four bays for easy expansion. The Buffalo Terastation NAS is perfect for those who require reliable and fast storage solutions. With its brand reputation and advanced features, it is an excellent choice for anyone looking to upgrade their storage infrastructure. Whether you are a professional or a home user, this product is sure to meet your needs.Used but works great. Buffalo Terastation NAS. Was in storage for many years. Booted up and works great. 4x1TB currently in RAID 10 configuration. Dual Gbe Nics. comes with partial mount rails. (doesnt have the back side, but you can still mount and slide it in)