QNAP 4-bay TS-451A personal cloud NAS / DAS with USB direct access, HDMI local display (4GB RAM version) Form Factor: 4-Bay Port RJ-45: 2 x 10/100/1000M Port USB: 3 x USB3.0 HDD Interface: 4 x SATA (4 x Bay) Processor: 14nm Intel Celeron N3060 dual-core 1.6 GHz (up to 2.48 GHz) Default/ Max. Memory: 4GB DDR3L (2 x 2GB) LEDs: Status / Power,USB,HDD 1,HDD 2,HDD 3,HDD 4 Power: Power: 96W AC power adapter, 100-240V AC Power Consumption: System sleep: 0.65W HDD standby:12.1W In operation:27W (with 4 x 2TB HDDs)