QNAP TS-451+-2G-US 4-Bay Personal Cloud NAS with HDMI output, DLNA, AirPlay and PLEX Support Black Case, Remote Control Included Form Factor: 4-bay-2GB Port RJ-45: 2 x 10/100/1000M Port USB: 2 x USB3.0 + 2 x USB2.0 HDD Interface: 4 x SATA (4 x Bay) Processor: Quad-core Intel Celeron 2.0 GHz (burst up to 2.42 GHz) Default/ Max. Memory: 2GB DDR3L RAM (expandable up to 8GB) LEDs: Status, LAN, USB, HDD 1-4 Power: External Power Adapter, 90W, 100-240V