RS1221+ Synology Rack 2U, QCCPU/4GbDDR4(upto32)/RAID0,1,5,6,10/upto 8 hot plug HDDs SATA(3,5'or2,5')(upto 12 with RX418)/2xUSB3.2/1eSATA/iSCSI/4xGbE(+1Expslot)/2xIPcam(upto 40)/norail repl RS1219+