ROG STRIX B550-A GAMING Features: AMD AM4 socket: Ready for Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors Best gaming connectivity: PCIe® 4.0-ready, dual M.2, USB 3.2 Gen 2 Type-C® plus HDMI™ 2.1 and DisplayPort 1.2 output support Smooth networking: Intel® 2.5Gb Ethernet with ASUS LANGuard Robust power solution: Teamed power stages with ProCool power connector, high-quality alloy chokes and durable capacitors Renowned software: Intuitive dashboards for UEFI BIOS and ASUS AI Networking make it easy to configure gaming builds DIY-friendly design: Includes pre-mounted I/O shield, BIOS FlashBack™, Q-LEDs and SafeSlot Unmatched personalization: ASUS-exclusive Aura Sync RGB lighting, including Aura RGB header and addressable Gen 2 RGB header Industry-leading gaming audio: AI Noise-Canceling Microphone, SupremeFX S1220A codec, DTS® Sound Unbound™ and Sonic Studio III for immersive audio Specifications: CPU AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors Chipset AMD B550 Memory AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3600(O.C.)/3466(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory AMD RyzenTM 4000 G-Series Processors 4 x DIMM, Max. 128GB, DDR4 5100(O.C)/4800(O.C.)/4600(O.C)/4400(O.C)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3600(O.C.)/3466(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory Dual Channel Memory Architecture OptiMem II ECC Memory (ECC mode) support varies by CPU. Graphics 1 x DisplayPort 1.2 1 x HDMI 2.1(4K@60HZ) Expansion Slots AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors 1 x PCIe 4.0 x16 (x16 mode) AMD RyzenTM 4000 G-Series Processor 1 x PCIe 3.0 x16 (x16 mode) AMD B550 Chipset 1 x PCIe 3.0 x16 (x4 mode) 3 x PCIe 3.0 x1 Multi-GPU Support Supports AMD 2-Way CrossFireX Technology Storage Total supports 2 x M.2 slot(s) and 6 x SATA 6Gb/s ports AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors : 1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode) AMD RyzenTM 4000 G-Series Processor : 1 x M.2_1 socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) AMD B550 Chipset : 1 x M.2_2 socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) 6 x SATA 6Gb/s port(s), Support Raid 0, 1, 10 Ethernet Intel® I225-V 2.5Gb Ethernet ASUS LANGuard USB Rear USB Port ( Total 8 ) 2 x USB 3.2 Gen 2 port(s)(1 x Type-A +1 x USB Type-C®) 4 x USB 3.2 Gen 1 port(s)(4 x Type-A) 2 x USB 2.0 port(s) Front USB Port ( Total 6 ) 2 x USB 3.2 Gen 1 port(s) 4 x USB 2.0 port(s) Audio ROG SupremeFX 8-Channel High Definition Audio CODEC S1220A Dual OP Amplifiers Impedance sense for front and rear headphone outputs Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking High quality 120 dB SNR stereo playback output and 113 dB SNR recording input Supports up to 32-Bit/192kHz playback Audio Feature : SupremeFX Shielding™ Technology Gold-plated jacks Optical S/PDIF in port(s) at back panel Audio Shielding Premium Japanese audio capacitors Audio Cover Back Panel I/O Ports 1 x Intel® I225-V 2.5Gb Ethernet 1 x DisplayPort 1 x HDMI 2 x USB 3.2 Gen 2 (1 x Type-A+1 x USB Type-C®) 4 x USB 3.2 Gen 1 2 x USB 2.0 1 x Optical S/PDIF out 1 x BIOS FlashBack™ Button(s) 5 x Gold-plated audio jacks Internal I/O Connectors 1 x CPU Fan connector(s) 1 x CPU OPT Fan connector(s) 3 x Chassis Fan connector(s) 1 x AIO_PUMP connector 1 x AAFP connector 2 x Aura RGB Strip Header(s) 1 x Addressable Gen 2 header(s) 1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s) 2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s) 1 x M.2 Socket 1 with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode) 1 x M.2 Socket 2 with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode) 6 x SATA 6Gb/s connector(s) 1 x Thunderbolt header(s) 1 x 24-pin EATX Power connector(s) 1 x 8-pin ATX 12V Power connector(s) 1 x 4-pin ATX 12V Power connector(s) 1 x System panel(s) 1 x Thermal sensor connector(s) 1 x Clear CMOS jumper(s) Special Features Aura Sync Standard RGB header(s) Addressable Gen 2 RGB header(s) ASUS Q-Design ASUS Q-DIMM ASUS Q-LED (DRAM [yellow],CPU [red], VGA [white], Boot Device [yellow green) ASUS Q-Slot ASUS Thermal Solution Aluminum M.2 heatsink ASUS EZ DIY -BIOS FlashBack™ button -BIOS FlashBack™ LED -Clear CMOS header -ProCool -Pre-mounted I/O shield SafeSlot Software Features OG Exclusive Software RAMCache III ROG CPU-Z GameFirst VI Sonic Studio III + Sonic Studio Virtual Mixer Sonic Radar III DTS® Sound Unbound Overwolf Anti-virus software ASUS Exclusive Software Features Armoury Crate Aura Creator Aura Sync AI Noise Cancelling Microphone AI Suite 3: PPSU EPU DIGI+ VRM Fan Xpert 4 TurboV EVO EZ update WinRAR UEFI BIOS ASUS EZ DIY ASUS CrashFree BIOS 3 ASUS EZ Flash 3 ASUS UEFI BIOS EZ Mode BIOS 256 Mb Flash ROM, UEFI AMI BIOS Manageability WOL by PME, PXE Accessories User´s manual 4 x SATA 6Gb/s cable(s) 1 x Supporting DVD 1 x ROG Strix stickers 1 x Cable ties pack(s) 1 x Extension cable for Addressable LED 1 x ROG Thank you card 1 x M.2 SSD screw package(s) 1 x M.2 Rubber Package(s) Operating System Windows® 10 64-bit Form Factor ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )