• AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors 

• AMD B550

• 4 x DIMM, Max. 128GB, DDR4 4866(O.C)/4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4333(O.C.)/4266(O.C.)/4200(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3333(O.C.)/3200/3000/2933/2800/2666/2400/2133 MHz Un-buffered Memory
• Dual Channel Memory Architecture
• ECC Memory (ECC mode) support varies by CPU.

• 1  x D-Sub
• 1  x DVI-D
• 1  x HDMI 2.1(4K@60HZ)

• AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors
• 1 x PCIe 4.0 x16 (x16 mode)
• AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors
• 1 x PCIe 3.0 x16 (x16 mode)
• AMD B550 Chipset
• 2 x PCIe 3.0 x1

• Total supports 2 x M.2 slot(s) and 4 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(PCIE 4.0 x4 and SATA modes) storage devices support
• AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors :
• 1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 3.0 x4 and SATA modes) storage devices support
• AMD B550 Chipset :
• 1 x M.2_2 socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support
• 4 x SATA 6Gb/s port(s),
• Support Raid 0, 1, 10

• Realtek RTL8111H 1Gb Ethernet

• Realtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC
• - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback
• Audio Feature :
• LED-illuminated design
• Audio Shielding
• Dedicated audio PCB layers
• Premium Japanese audio capacitors

• Rear USB Port ( Total 6  )
• 2 x USB 3.2 Gen 2 port(s)(2 x Type-A)
• 4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
• Front USB Port ( Total 6  )
• 2 x USB 3.2 Gen 1 port(s)(2 x Type-A)
• 4 x USB 2.0 port(s)(4 x Type-A)

• 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+
• - EZ update
• ASUS CPU-Z
• AI Charger
• DAEMON Tools
• Norton Anti-virus 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 5X PROTECTION III
• ASUS DIGI+ VRM
• ASUS LANGuard
• ASUS Overvoltage Protection
• ASUS SafeSlot Core
• ASUS Stainless-Steel Back I/O
• ASUS Q-Design
• ASUS Q-DIMM
• ASUS Q-Slot
• ASUS Thermal Solution
• Aluminum heatsink design
• AURA Sync
• Standard RGB headers
• Addressable Gen 2 RGB header
• ASUS Lighting Control

• 1 x PS/2 keyboard/mouse combo port(s)
• 1 x DVI-D
• 1 x D-Sub
• 1 x HDMI
• 1 x LAN (RJ45) port(s)
• 2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A)
• 4 x USB 3.2 Gen 1 (blue) Type-A
• 3 x Audio jack(s)

• 1 x CPU Fan connector(s)
• 1 x CPU OPT Fan connector(s)
• 2 x Chassis Fan connector(s)
• 2 x Aura RGB Strip Headers
• 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 3 with M Key, type 2242/2260/2280/22110 storage devices support (SATA mode & X4 PCIE mode)
• 1 x M.2 Socket 3 with M Key, type 2242/2260/2280 storage devices support (SATA mode & X4 PCIE mode)
• 1 x SPI TPM header
• 4 x SATA 6Gb/s connector(s)
• 1 x S/PDIF out header(s)
• 1 x 24-pin EATX Power connector(s)
• 1 x 8-pin EATX 12V Power connectors
• 1 x Front panel audio connector(s) (AAFP)
• 1 x Clear CMOS jumper(s)
• 1 x System panel connector
• 1 x COM port header
• 1 x Speaker connector

• I/O Shield
• 2 x SATA 6Gb/s cable(s)
• 1 x Supporting DVD
• User manual
• 1 x M.2 SSD screw package(s)

• 256 Mb Flash ROM, UEFI AMI BIOS

• WOL by PXE

• Windows® 10 64-bit

• mATX Form Factor
• 9.6  inch x 9.6  inch ( 24.4  cm x 24.4  cm )

Product Code: PRIME B550M-A
Warranty: 1-Year Warranty

View details on manufacturer's website