Package contains: products: MACHINIST H81M PRO S1 motherboard*1 piece; accessories: I/O shield, SATA cable; They are all packaged after manual testing before sending If there are any items missing, please understand! Motherboard information: >>Brand: MACHINIST >>Motherboard model: H81M PRO S1 >>Processor: Supports Intel LGA 1150-pin sequence processors >>Chipset: H81 chipset >>Structure: M-ATX >>Memory Technology: Dual Channel DDR3 Support 1066/1333/1600/1866MHz Maximum skill 16GB (8G x 2) Memory slot: 2*240 PIN DDR3 Supported memory types: Only DDR3 desktop reminiscence is supported (Note: Please use Samsung, Kingston, Sandee, Micron, Hynix and different international brands Other manufacturers may not be compatible) >> Rear I/O PS/2: 1 KB interface and 1 MS interface; USB interface: 2 USB2; three USB2; Display interface: 1 HDMI; 1 VGA; Ethernet: 1 Gigabit network card; Audio: 3 >> Internal connector PCIe: 2 (1 PCIe x16, 1 PCIe X1); M: 1* NVME M; WIFI: 1 WLAN-1 interface; ATXPWR interface: normal lx8PIN power socket; 1 ordinary 1x24PIN energy socket; SATA interface: 2 SATA interfaces (SATA3); 2 SATA interfaces (SATA2); >> Dimensions Motherboard size: 244MM*303MM Motherboard weight (including packaging): about zero Notice: (1) The shade of the tank backside plate could range from batch to batch, but it will not influence the use of the product Products are continuously optimized and upgraded (2) Due to manual measurement, please allow an error of 1-3mm (3)Due to different displays and different lights, the images won't demonstrate the actual color of the thing thank you for realizing (4) The platform calls for an impressive power delivery Please make sure your power supply is ample for this platform (At least 500w brand strength supply) (5) The battery in the motherboard photograph is not included and could be eliminated earlier than shipment as a result of logistics requirements prohibit the use of this battery