Fan interface: no fan cooling design, 1*4pin CPU intelligent fan interface and 1*3pin system fan interface are reserved. GPIO: supports four way input and output GPIO BIOS: 64Mb Flash ROM Watchdog: Support hardware reset function (256 levels, 0-255 seconds). Operating system:for Windows 7/Windows 10/Linux. Model:M51-D912L Power supply type: DC12V single power supply Working temperature:-10-60 Storage temperature: -20-70 Working humidity:5%-95% relative humidity, no condensation. Size: 170mm x170mm Specifications:B:J1900 Single Network Dual Serial LVDS Model M51_D912L Colour:As Shown Material:PCB+Metal Package Contents: 1 * Mini ITX industrial control motherboard Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.