- AMD AM4 socket: Ready for 3rd Gen AMD Ryzen™ Processors
- Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
- Ultrafast connectivity: Dual M.2, PCIe 4.0, Intel® WiFi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
- Aura Sync RGB: Onboard addressable Gen 2 header for RGB LED strips, easily synced with Aura Sync-capable hardware



Prime B550 series features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS.
● Multiple Temperature Sources: Each header can dynamically reference three thermal sensors. Fan Xpert 2+ allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks.
● 4-Pin PWM/DC Fan: Each onboard chassis fan header supports PWM and DC mode.


* Actual speed varies, and depends on networking conditions.





- CPU
Build in AMD AM4 Socket 3rd Gen AMD Ryzen™ Processors *
* Refer to www.asus.com for CPU support list - Chipset
AMD B550
- Memory
3rd Gen AMD Ryzen™ Processors
4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory *
Next Generation AMD Ryzen PRO Processors
4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz 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). - Graphic
1 x D-Sub
1 x DVI-D
1 x HDMI 2.1(4K@60HZ) - Expansion Slots
3rd Gen AMD Ryzen™ Processors
1 x PCIe 4.0 x16 (x16 mode)
AMD B550 Chipset
2 x PCIe 3.0 x1 - Storage
Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
3rd Gen AMD Ryzen™ Processors :
1 x M.2 Socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 4.0 x4 and SATA modes) storage devices support
AMD B550 Chipset :
1 x M.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 - LAN
Realtek RTL8111H 1Gb Ethernet
- Wireless Data Network
Intel® Wi-Fi 6 AX200
2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) support 1024QAM/OFDMA/MU-MIMO
Supports up to 2.4Gbps max data rate
Supports dual band frequency 2.4/5 GHz
Supports channel bandwidth: HT20/HT40/HT80/HT160
Supports PCIe interface - Bluetooth
Bluetooth v5.1*
*BT 5.1 function will be ready in Windows 10 build 19041 or later. - Audio
Realtek ALC887 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 - USB Ports
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) - 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+ – 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 Special 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
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 ASUS Wi-Fi Module - Internal I/O Ports
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 & PCIe 4.0 x4 mode)
1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 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 - Accessories
I/O Shield
2 x SATA 6Gb/s cable(s)
1 x Supporting DVD
User manual
1 x Wi-Fi moving antenna
1 x M.2 SSD screw package(s) - BIOS
256 Mb Flash ROM, UEFI AMI BIOS
- Manageability
WOL by PXE
- Operating System
Windows® 10 64-bit
- Form Factor
mATX Form Factor
9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )
FEATURES
AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, Intel® WiFi 6, 1 Gb Ethernet, HDMI/D-Sub/DVI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB headers support
- AMD AM4 socket: Ready for 3rd Gen AMD Ryzen™ Processors
- Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
- Ultrafast connectivity: Dual M.2, PCIe 4.0, Intel® WiFi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
- Aura Sync RGB: Onboard addressable Gen 2 header for RGB LED strips, easily synced with Aura Sync-capable hardware
SPECIFICATIONS
CPU | Build in AMD AM4 Socket 3rd Gen AMD Ryzen™ Processors |
Chipset |
AMD B550
|
Memory | 3rd Gen AMD Ryzen™ Processors 4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory * Next Generation AMD Ryzen PRO Processors 4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory * Dual Channel Memory Architecture ECC Memory (ECC mode) support varies by CPU. |
Graphic | 1 x D-Sub 1 x DVI-D 1 x HDMI 2.1(4K@60HZ) |
Expansion Slots | 3rd Gen AMD Ryzen™ Processors 1 x PCIe 4.0 x16 (x16 mode) AMD B550 Chipset 2 x PCIe 3.0 x1 |
Storage | Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports 3rd Gen AMD Ryzen™ Processors : 1 x M.2 Socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 4.0 x4 and SATA modes) storage devices support AMD B550 Chipset : 1 x M.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 |
LAN |
Realtek RTL8111H 1Gb Ethernet
|
Wireless Data Network | Intel® Wi-Fi 6 AX200 2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) support 1024QAM/OFDMA/MU-MIMO Supports up to 2.4Gbps max data rate Supports dual band frequency 2.4/5 GHz Supports channel bandwidth: HT20/HT40/HT80/HT160 Supports PCIe interface |
Bluetooth | Bluetooth v5.1* *BT 5.1 function will be ready in Windows 10 build 19041 or later. |
Audio | Realtek ALC887 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 |
USB Ports | 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) |
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+ – 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 Special 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 | 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 ASUS Wi-Fi Module |
Internal I/O Ports | 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 & PCIe 4.0 x4 mode) 1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 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 |
BIOS |
256 Mb Flash ROM, UEFI AMI BIOS
|
Manageability |
WOL by PXE
|
Operating System |
Windows® 10 64-bit
|
Form Factor |
mATX Form Factor
9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm ) |
Warranty |
3 Years
|
Note |
***Features, Price and Specifications are subject to change without notice
|
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