Synology DS713+ 4TB (2 x 2TB WD Red) DiskStation 2
http://www.amazon.co.uk/dp/B009TPDFHC?tag=dedik-21
Feature
* 202.3 MB/sec Reading, 135.84 MB/sec Writing Speed
* Dual Core CPU Super-Speed USB 3.0 Ports
* Dual-LAN Failover and Link Aggregation Support
* Extensive Surveillance With 20 HD IP Camera Capacity
Synology DS713+/4TB-RED - DS713+ 4TB 2 Bay Desktop NAS
http://www.amazon.co.uk/dp/B009TPDFHC?tag=dedik-21