Synology DiskStation 4-Bay 12TB (4 x 3TB) Network Attached Storage (NAS) (DS413 4300) CPU Frequency: 1.067 GHz Memory: 1 GB DDR3, Maximum Internal Capacity: 16TB System Fan: 92 mm X 92 mm X 2 Interface: 2 x USB 3.0 Port, 1x USB 2.0 port, 1 x eSATA Port, 1 x RJ-45 10/100/1000 Gigabit Ethernet Port , 1x Gigabit LAN, Noise Level: 19.4 dBA