Synology DS1621xs+ QC2,​2GhzCPU​/8GbDDR4(upto32)​/RAID0,​1,​10,​5,​6​/upto 6hot plug HDD SATA(3,​5' or 2,​5')(upto16 with 2xDX517)​/ 3xUSB3.0​/2eSATA​/2GigE+1x10GE(+1Expslot)​/iSCSI​/2xIPcam(upto75)​/ 1xPS​/5YW