Durable material: This product is made of high-quality material, durable, long service time, firm and stable in use. Quick start, loading and file transfer. Low power consumption, quiet, reliable and durable. USB3.0 interface: Instantly experience data transfer speed 10 times faster than USB2.0 through plug and play function. High energy heat dissipation, not afraid of high temperature, increase, strong heat dissipation design to the full speed of advanced CPU operation. Perfect match: According to the model design, perfect replacement installation, high-quality components. 1. Display interface: 1xHDMI-compatible, 1xVGA 2. USB rear: 2xUSB2.0 3. USB front: 1xUSB2.0 4. USB rear: 2xUSB3.0 5. USB front: 1xUSB3.0 6. Hard disk interface: 4xSATA 7. Graphics interface: 12xPCIE1X (USB transfer) 8. Network card interface: 1xLAN 100M network card 9. Memory slot: 2xDDR3 10. CPU socket: LGA (1155) 11. Chipset: BGA (B75) 12. Hard disk interface: 1xMSATA 13. BIOS initial restoration: JCMOS 14. Speaker interface: 1SPK 15. Power interface: 24pin_ATXPWR 16. Power interface: 4pin_ATX12V Colour:black Material: PCB Size:23 x 18CM Package Contents: 1 x Motherboard 1 x G540 CPU 1 x DDR3 4GB 1333mhz RAM(the appearance and color are random, don' accept the specified ) 1 x Cooling Fan (The Appearance Of Batches , don' accept the specified) 1 x SATA Cable(the appearance and color are random, don' accept the specified ) 1 x Thermal Pad(random colors, don' accept the specified color) Note: The appearance and color of different batches , which does not affect the use Only the above package content, other products are not included. Note: Light 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.