... intelligent positioning with Dahua PTZ dome camera> Support 8 SATA HDDs up to 32TB, 1 eSATA up to 16TB, 4 USB2 ... -RW), up to 32TBExternal HDD1 eSATA port (Max 4 SATA HDDs), up to 16TBAuxiliary InterfaceUSB Interface4 ports (2 Rear), USB2.0RS2321 ...