AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors * Refer to www.asus.com for CPU support list.

B550

4 x DIMM, Max. 128GB, DDR4 4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133, Un-buffered Memory*Dual Channel Memory Architecture* ECC Memory (ECC mode) support varies by CPU.* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.

1 x DisplayPort** ** Supports max. 4K@60Hz as specified in DisplayPort 1.2.*** Supports 4K@60Hz as specified in HDMI 2.1.

AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors1 x PCIe 4.0 x16 slot (supports x16 mode)*AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors1 x PCIe 3.0 x16 slot (supports x16 mode)*AMD B550 Chipset1 x PCIe 3.0 x16 slot (supports x4 mode)**1 x PCIe 3.0 x1 slot*** Support PCIe bifurcation for RAID on CPU function.** PCIEX16_2 will run x2 mode when PCIEX1 slot is used.

Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports AMD Ryzen™ 5000 Series/ 3000 Series Desktop ProcessorsM.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes)AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop ProcessorsM.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)AMD B550 ChipsetM.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)4 x SATA 6Gb/s portsSupport RAID 0, 1, 10

TUF LANGuard

2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) + BT5.2

Rear USB:Total 8 ports 2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C^®)4 x USB 3.2 Gen 1 ports (4 x Type-A)2 x USB 2.0 ports (2 x Type-A)Front USB:Total 6 ports 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports2 x USB 2.0 headers support additional 4 USB 2.0 ports

Realtek 7.1 Surround Sound High Definition Audio CODEC- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking- Supports up to 24-Bit/192 kHz playbackAudio Features- Audio Shielding- Rear optical S/PDIF out port- Premium audio capacitors- Dedicated audio PCB layers- Audio cover

2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x USB Type-C^®)4 x USB 3.2 Gen 1 ports (4 x Type-A, one port can be switched to USB BIOS FlashBack™)2 x USB 2.0 ports (2 x Type-A)1 x DisplayPort1 x HDMI^® port1 x Wi-Fi Module1 x Realtek 2.5Gb Ethernet port5 x Audio jacks1 x Optical S/PDIF out port1 x BIOS FlashBack™ button1 x PS/2 Keyboard/Mouse combo port

Fan and Cooling related1 x 4-pin CPU Fan header1 x 4-pin CPU OPT Fan header2 x 4-pin Chassis Fan headersPower related1 x 24-pin Main Power connector1 x 8-pin +12V Power connectorStorage related2 x M.2 slots (Key M)4 x SATA 6Gb/s portsUSB1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports2 x USB 2.0 headers support additional 4 USB 2.0 portsMiscellaneous1 x Addressable Gen 2 header2 x AURA RGB headers1 x Clear CMOS header1 x COM Port header1 x Front Panel Audio header (AAFP)1 x Speaker header1 x SPI TPM header (14-1pin)1 x 10-1 pin System Panel header

ASUS TUF PROTECTION- DIGI+ VRM (Digital power design with DrMOS)- Enhanced DRAM Overcurrent Protection- ESD Guards- TUF LANGuard- Overvoltage Protection- SafeSlot- Stainless-Steel Back I/OASUS Q-Design- Q-DIMM- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])- Q-SlotASUS Thermal Solution- M.2 heatsink- VRM heatsink designASUS EZ DIY- BIOS FlashBack™ button- BIOS FlashBack™ LED- ProCoolAURA Sync- AURA RGB headers- Addressable Gen 2 header

ASUS Exclusive SoftwareArmoury Crate- Aura Creator- Aura Sync- Two-Way AI Noise CancelationAI Suite 3- Performance And Power Saving Utility - EZ updateTUF GAMING CPU-ZAI ChargerDAEMON ToolsDTS Custom for GAMING HeadsetsNorton Anti-virus software (Free Trial version)WinRARUEFI BIOSASUS EZ DIY- ASUS CrashFree BIOS 3- ASUS EZ Flash 3- ASUS UEFI BIOS EZ Mode

256 Mb Flash ROM, UEFI AMI BIOS

WOL by PME, PXE

Cables2 x SATA 6Gb/s cablesMiscellaneous1 x ASUS Wi-Fi moving antennas1 x I/O Shield1 x M.2 Rubber package1 x M.2 SSD screw package1 x TUF Gaming stickerInstallation Media1 x Support DVDDocumentation1 x TUF Certification card1 x User guide

Windows 10 64bit Windows^® 11 readyWindows^® 10 64-bit

microATX 24.4cm x 24.4cm