This is SNT 5-Bay External SATA Hard Drive Enclosure filled with 2TB drives. Unit is fully functional and works fine. What missing is: original documentation and box. 

I have upgrade my storage and listing it for sale. Thanks for looking and happy bidding. 

Features: 
* Cableless HDD connection 
* HDD power control 
* High performance transmission rate 
* Patent balance handle - No skew in/out problem 
* Support hot swap & hot plug-in 
* Support RAID 0, 1, 1+0,5 

Specifications: 
* 8X8 Cooling Fan X 2, Adjustable High/Low Fan Speed Control 
* Dim: 215(L) x 156(W) x 211(H)mm 
* Interface: SATA to eSATA +RAID 
* LED indicators for AC power, HDD power & HDD access 
* Material: Aluminum 
* Patent Removable switching 85W, AC 100-240V Power 
* Weight: ~22lb