1、Built-in dual-band 300Mbps WIFI module,and you can enjoy the wireless network. 2、Good expansion performance. You can upgrade the hard disk capacity up to 2TB, install the WiFi module, and extend the memory. 3、With small size of only 15x13x9cm/6.1x1x9in, support VESA standard, and can be placed behind the monitor without taking up space. 4、Support a variety of devices, complete interface, 1000Mbps RJ45 dual-port, HDMI + VGA dual video output, USB interface. 5、Designed with no fan, full metal thickened body, large metal heat sink, 24x7H stable operation for a long time. Features: 1. Built-in dual-band 300Mbps WIFI module,and you can enjoy the wireless network. 2. Good expansion performance. You can upgrade the hard disk capacity up to 2TB, install the WiFi module, and extend the memory. 3. With small size of only 15.5x13x 4.9cm/ 6.1x 5.1x 1.9in, support VESA standard, and can be placed behind the monitor without taking up space. 4. Support a variety of devices, complete interface, 1000Mbps RJ45 dual-port, HDMI + VGA dual video output, USB interface. 5. Designed with no fan, full metal thickened body, large metal heat sink, 24x7H stable operation for a long time. 6. Built-in for Intel J1900 2.0GHZ powerful quad-core processor for easy multitasking. Specification: Item Type: Computer Built-in System: For Windows 7 64-bit Processor: For Intel J1900 quad-core 4 thread 22NM processor, main band 2.0GHz Memory: Built-in single 8GB DDR3L1333/1600MHZ low-voltage notebook memory, and support expansion up to 16GB Hard Disk: Built-in 2TB HDD, expandable M-SATA SSD Video Output: HDMI 1.4 interface, 1xVGA, support dual display output Interface :1xUSB 3.0, 3xUSB 2.0, 2x1000M LAN, 4X RS232 COM port, 1xaudio, 2xWIFi antenna interface Graphics: For Intel HD Graphics Audio Output: 1 x audio output Operating System: No system by default, customers need to install by themselves The network interface board carries a dual-port gigabit network card + 2.4g /5G 300M dual-band wireless network card Size: Approx. 15.5x13x 4.9cm/ 6.1x 5.1x 1.9in Weigh: Approx. 893g Color: Black Shell Material: All aluminum alloy Plug: US, EU (optional) Package List: 1 x Host 1 x Hanger 1 x Power Adapter 1 x Screws Pack 1 x HDMI Cable 2 x Wifi Antenna