Synology DiskStation 5-Bay (Diskless) Network Attached Storage DS1512+ Scaling up to 15 Drives with Synology DX510 194.6 MB/sec Writing, 192.4 MB/sec Reading Featuring SuperSpeed USB 3.0 Expandable RAM Module (Up to 3GB) 2 LAN with Link Aggregation Support (LAN:Gigabit X 2)