Synology DS716+II Diskless System Network Storage Form Factor: 2-Bay Port RJ-45: 2 x 10/100/1000M Port USB: 3 x USB3.0 Port eSATA: 1 x eSATA HDD Interface: 2 x SATA (2 x Bay) Processor: Intel Celeron N3160 quad-core 1.6 GHz, burst up to 2.24 GHz Default/ Max. Memory: 2 GB DDR3 Power: AC input power voltage: 100V to 240V Power frequency: 50Hz to 60Hz, single phase