ASUS PRIME B450M-A II AMD B450 (Ryzen AM4) micro ATX motherboard with M.2 support, HDMI/DVI-D/D-Sub, SATA 6 Gbps, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A, BIOS FlashBack™, and Aura Sync RGB lighting support Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+ Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 2 Type-A 5X Protection III: Multiple hardware safeguards for all-around system protection Aura Sync RGB Lighting: Onboard connector for RGB LED strips, easily synced with an ever-growing portfolio of Aura Sync-capable hardware CPU AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors * Chipset AMD B450 Memory 3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors 4 x DIMM, Max. 128GB, DDR4 4400(O.C)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory * Dual Channel Memory Architecture Graphic Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors * 1  x D-Sub 1  x DVI-D 1  x HDMI 2.0b Expansion Slots 3rd/2nd/1st Gen AMD Ryzen™ Processors 1 x PCIe 3.0 x16 (x16 mode) 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics Processors 1 x PCIe 3.0 x16 (x8 mode) AMD Athlon™ with Radeon™ Vega Graphics Processors 1 x PCIe 3.0 x16 (x4 mode) AMD B450 chipset 2 x PCIe 2.0 x1 Storage Total supports 1 x M.2 slot(s) and 6 x SATA 6Gb/s ports 2 x SATA 6Gb/s port(s), Support Raid 0, 1, 10 AMD B450 chipset : 4 x SATA 6Gb/s port(s), Support Raid 0, 1, 10 LAN Realtek® RTL8111H ASUS LANGuard mATX Form Factor 24.4 cm x 24 cm