Synology Disk Station 8-Bay Network Attached Storage (DS2015xs) 2 x 10Gbps SFP+ ports and 2 x 1Gbps RJ-45 ports with Failover and Link Aggregation support Scale up to 20 drives with Synology DX1215 Expandable RAM module (up to 8GB) High Availability and SSD cache support VMware , Citrix , Microsoft Hyper-V Certified Running on Synology Disk Station Manager (DSM)