ASUS PRIME B550M-A Mainboard

Memory

* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.,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 *,ECC Memory (ECC mode) support varies by CPU.,Dual Channel Memory Architecture

Expansion Slots

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

Storage

AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors : ,AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors : ,Total supports 2 x M.2 slot(s) and 4 x SATA 6Gb/s ports,1 x M.2_2 socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support,AMD B550 Chipset : ,4 x SATA 6Gb/s port(s),,Support Raid 0, 1, 10,1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 4.0 x4 and SATA modes) storage devices support,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

Audio

– Premium audio capacitors,Realtek ALC887/8977.1 Surround Sound High Definition Audio CODEC,- Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback,- LED-illuminated design,- Audio Shielding,- Dedicated audio PCB layers,Audio Feature :,* Choose the chassis with HD audio module in front panel to support 8-channel audio output.

USB Port

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

Special 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+
– 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

Software Features

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

Back I/O Ports

2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A),4 x USB 3.2 Gen 1 (blue) Type-A,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),3 x Audio jack(s)

Internal I/O Connectors

1 x COM port header,1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(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),2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s),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,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)

Accessories

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

BIOS

256 Mb Flash ROM, UEFI AMI BIOS