Synology QC3,35GhzCPU/ 8GbDDR4(upto32)/ RAID0,1,10,5,6/ upto 8hot plug HDD SATA(3,5' or 2,5')(upto18 with 2xDX517)+ 2 M2 slots/ 3xUSB3.2/ 2eSATA/ 2GigE(+1Expslot)/ 1x10GbGigE/ iSCSI/ 2xIPcam(upto75)/ 1xPS/ 1YW (DS1823XS+)