ASUS TUF B450-PRO GAMING AMD B450 ATX gaming Motherboard (ASUS TUF B450-PRO GAMING) - AMD AM4 Socket for 3rd/2nd/1st Gen AMD Ryzen™/2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/Athlon™ with Radeon™ Vega Graphics Processors, Memory: 4x Dual Channel DDR4 DIMM Slot, Max. 128GB, DDR4 4600MHz, Expansion Slots: 3 x PCIe 3.0/2.0 x16, 1 x PCIe 2.0 x16, 3 x PCIe 2.0 x1, Storage: 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA&PCIE 3.0 x 4 mode), Operating System: Windows 10 64-bit, Windows 7 64-bit, Form Factor: 12.0 inch x 9.6 inch ( 30.5 cm x 24.4 cm ), Onboard VGA Output Available: 1x HDMI + 1x DP