PRIME B450M-A II Features: Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+ Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 2 TypeA 5X Protection III: Multiple hardware safeguards for allaround system protection Aura Sync RGB Lighting: Onboard connector for RGB LED strips, easily synced with an evergrowing portfolio of Aura Synccapable hardware Specifications: CPU 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 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 Unbuffered Memory Dual Channel Memory Architecture ECC Memory (ECC mode) support varies by CPU. Graphic Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors 1 x DSub 1 x DVID 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 3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics : 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) Athlon™ with Radeon™ Vega Graphics Processors : 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA mode) 3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors : 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 Audio Realtek 7.1Channel High Definition Audio CODEC Supports : Jackdetection, Multistreaming, Front Panel Jackretasking, up to 24Bit/192kHz playback Audio Feature : LEDilluminated design Audio Shielding Dedicated audio PCB layers Premium Japanese audio capacitors USB Ports Rear USB Port ( Total 6 ) 2 x USB 3.2 Gen 2 (up to 10Gbps) port(s)(2 x TypeA) 4 x USB 3.2 Gen 1 port(s)(4 x TypeA) Front USB Port ( Total 6 ) 2 x USB 3.2 Gen 1 port(s) 4 x USB 2.0 port(s) Software Features ASUS Exclusive Software Armoury Crate AURA Creator AURA Sync AI Suite 3 Performance and Power Saving Utility TurboV EVO EPU DIGI+ VRM Fan Xpert 2+ PC Cleaner EZ update System Information ASUS CPUZ AI Charger ASUS EZ Installer DAEMON Tools Norton Antivirus software (Free Trial for 60 days) WinRAR UEFI BIOS ASUS EZ DIY ASUS CrashFree BIOS 3 ASUS EZ Flash 3 ASUS UEFI BIOS EZ Mode ASUS Special Features ASUS 5X PROTECTION III ASUS DIGI+ VRM ASUS LANGuard ASUS Overvoltage Protection ASUS SafeSlot Core ASUS StainlessSteel Back I/O ASUS QDesign ASUS QDIMM ASUS QSlot ASUS Thermal Solution Aluminum heatsink design ASUS EZ DIY BIOS FlashBack™ button BIOS FlashBack™ LED AURA Sync AURA RGB header ASUS Lighting Control Back I/O Ports 1 x PS/2 keyboard/mouse combo port(s) 1 x DVID 1 x DSub 1 x HDMI 1 x LAN (RJ45) port(s) 2 x USB 3.2 Gen 2 (teal blue) (2 x TypeA) 4 x USB 3.2 Gen 1 (blue) TypeA 3 x Audio jack(s) 1 x BIOS FlashBack™ Button(s) Internal I/O Ports 1 x CPU Fan connector(s) (1 x 4 pin) 2 x Chassis Fan connector(s) (2 x 4 pin) 1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s) (19pin) 2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s) 1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) 1 x SPI TPM header 1 x COM port(s) connector(s) 6 x SATA 6Gb/s connector(s) 1 x S/PDIF out header(s) 1 x 24pin EATX Power connector(s) 1 x 8pin ATX 12V Power connector(s) 1 x Front panel audio connector(s) (AAFP) 1 x System panel(s) 1 x Clear CMOS jumper(s) 1 x COM port header 1 x Speaker connector 1 x RGB Header Accessories User's manual I/O Shield 2 x SATA 6Gb/s cable(s) 1 x M.2 Screw Package 1 x Supporting DVD BIOS 256 Mb Flash ROM, UEFI AMI BIOS Operating System Windows® 10 64bit Windows® 7 64bit Form Factor mATX Form Factor 9.6 inch x 9.5 inch ( 24.4 cm x 24 cm )