1、B75 motherboard supports dual USB 3.0 ports for front and rear, which supports SATA3.0 hard disk transfer rate, USB2.0 and SATA2.0 modes with super performance H61. 2、Front and rear dual USB3.0 interface can keep high transfer rate, which makes mainboard with high performance. 3、Desktop motherboard is compatible with DDR3 desktop memory 1066/1333/1600/1866. 4、4 SATA interfaces support high‑speed transmission of SSD, which can be easy to connect. 5、High‑definition high‑performance nuclear graphics card supports VGA and High Definition Multimedia Interface dual output. Item Type Motherboard Motherboard Chip Integrated chip sound card / network card nuclear display card Main chipset for B75 Network card chip integrated RTL8105E 100M network card Audio chip integrated 6-channel cudio chip Processor Pattern CPU Platform: For Core II and III CPU Socket: LGA 1155 Support: 1 CPU Memory Pattern Memory Type: DDR3 1600/1333/1066 MHZ Memory Slot 2 × DDR3 Expansion Slot 1 × PCI-E X16 graphics slot 1 x PCI-E X1 slot 1 x USB2.0 pin 1 x USB3.0 pin 4 x SATA2.0 interface + M.2 NVME hard disk interface I / O Interface 1 USB keyboard and mouse 1 x RJ45 network interface 1 x VGA interface 1 x High Definition Multimedia Interface HD output 2 x USB 2.0 interface 2 x USB3.0 interface Audio port Motherboard Size Approx. 17 x 19cm / 6.69 x 7.48in (outer box size: approx. 28 x 21 x 11cm / 11.02 x 8.27 x 4.33in) Weight without Box Approx. 0.5 kg / 1.1 lb Gross Weight Approx. 0.78 kg(the total weight of the set includes CPU fan memory) Other Parameters A 4-pin power socket and a 24-pin power interface Power Supply Mode: 3 phase Battery Model CR2023(Not included) 1 x Motherboard 1 x PIN Cable 1 x Iron plate