Synology DiskStation 2-Bay (2x 3TB NAS Drives) Network Attached Storage (NAS) DS713+ 2300 Dual Core CPU & Super-Speed USB 3.0 Ports Dual-LAN Failover and Link Aggregation Support Hassle-free Scalability Up to 7 Drives With Synology DX513 Extensive Surveillance With 20 HD IP Camera Capacity VMware with VAAI support, Citrix, Microsoft Hyper-V compliant CPU Frequency: 2.13 GHz Memory: 1 GB DDR3, Maximum Internal Capacity: 8TB System Fan: 92 mm X 92 mm X 1 Interface: 2x USB 3.0 Port, 1x USB 2.0 port, 1x eSATA Port, 2x Gigabit LAN Noise Level: 19.2 dBA