Dark mode
United Kingdom
Catalog   /   Computing   /   Components   /   Motherboards   /   ASRock

ASRock B850 Pro RS (90-MXBQK0-A0UAYAZ)

Photos - Motherboard ASRock B850 Pro RS
Photos 6
ASRock B850 Pro RS
+ Wi-Fiwithout Wi-Fi
Towards:gaming
Form Factor:ATX
Socket:AMD AM5
Chipset:AMD B850
BIOS:Ami
RAM slots:DDR5 4 sl
RAM form factor:DIMM
RAM clock:8000 MHz
Sound (channels):7.1
Connectors:HDMI, M.2
Power connector:24 pin
Processor power:8+8 pin
All specifications
Specifications B850 Pro RS
Main
Featuresgaming
SocketAMD AM5
Form factorATX
Power phases17 / 14+2+1 /
VRM heatsink
LED lighting
Lighting syncASRock Polychrome Sync
Size (HxW)305x244 mm
Chipset
ChipsetAMD B850
BIOSAmi
UEFI BIOS
RAM
DDR54 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency8000 MHz / + /
Max. memory256 GB
XMP
EXPO support
Drive interface
SATA 3 (6Gbps)4
M.2 connector4
M.24xPCI-E 4x
M.2 version1x5.0, 2x4.0, 1x3.0
M.2 SSD cooling
Integrated RAID controller
Expansion slots
PCI-E 16x slots2
PCI Modes16x/4x
PCI Express5.0
Steel PCI-E connectors
Internal connections
TPM connector
USB 2.02
USB 3.2 gen12
USB C 3.2 gen2x21
ARGB LED strip3
RGB LED strip1
Video outputs
HDMI output
HDMI versionv.2.1
Integrated audio
AudiochipRealtek ALC897
Sound (channels)7.1
Network interfaces
LAN (RJ-45)2.5 Gbps
LAN ports1
LAN controllerDragon RTL8125BG
External connections
USB 2.06
USB 3.2 gen24
USB C 3.2 gen11
USB C 3.2 gen21
Alternate Mode
BIOS FlashBack
Power connectors
Main power socket24 pin
CPU power8+8 pin
Fan power connectors7
CPU Fan 4-pin2
CPU/Water Pump Fan 4-pin1
Chassis/Water Pump Fan 4-pin4
Official Websiteasrock.com
Added to E-Catalogjanuary 2025
P/N
90-MXBQK0-A0UAYAZ

Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
How to choose a motherboard?Motherboard is the main part of any computer. Here's how to choose the right one for work, play and entertainment

Buy ASRock B850 Pro RS

All prices 7 →
When you make a purchase through links on our site, we may earn an affiliate commission.

MB ASRock AMD AM5 B850 Pro RS 90-MXBQK0-A0UAYAZ

MEG Z890 GODLIKE Model Number:750000453 High quality
Amazon.co.uk
Delivery: to United Kingdom
Report
£186.58

ASRock AMD B850 Pro RS AM5 DDR5 PCIe 5.0 ATX Motherboard

Scan.co.uk
Delivery: to United Kingdom
Report
£179.99

ASRock B850 Pro RS AMD Ryzen AM5 DDR5 ATX Motherboard - 90-MXBQK-A0UAYZ 90-MXBQK-A0UAYZ

Upgrade your system with the ASRock B850 Pro RS AMD Ryzen AM5 DDR5 ATX Motherboard. This high-performance motherboard support... mores the latest Ryzen processors, ensuring exceptional speed and efficiency. Enjoy advanced connectivity options, robust power design, and superior reliability to enhance your gaming and productivity experience. Optimize your build today.
Awd-it.co.uk
Delivery: to United Kingdom
Report
£179.99

Asrock B850 PRO RS, AMD B850, AM5, ATX, 4 DDR5, HDMI, USB-C (DP-alt),

ComputersDeal.com
Delivery: in United Kingdom
Report
£175.64

ASRock B850 Pro RS AMD AM5 Socket Motherboard ATX 4x DDR5 Slots 4x M.2 Sockets 3x USB-C Port Fitted I/O Shield 2.5GbE LAN 1x

Modern and futuristic with the attractive specifications and perfect balance the Race Sport (RS) Edition is the e... morevolution of the most popular PRO series motherboard. - Supports AMD Socket AM5 Ryzen™ 9000 8000 and 7000 Series Processors - 14+2+1 Phase Power Design 80A Dr.MOS for VCore+SOC+MISC - 4 x DDR5 DIMMs - Supports Dual Channel up to 8000+ (OC) - PCIe 5.0 x16 1 PCIe 4.0 x16 1 M.2 Key E for WiFi - Graphics Output Options: 1 HDMI 1 USB Type-C (DP-alt) - Realtek ALC897 7.1 CH HD Audio Codec Nahimic Audio - 1 Blazing M.2 (PCIe Gen5x4) - 2 Hyper M.2 (PCIe Gen4x4) - 1 Ultra M.2 (PCIe Gen3x4) - 4 SATA3 - 1 USB 3.2 Gen2x2 Type-C (Front) - 1 USB 3.2 Gen2 Type-C (Rear) - 1 USB 3.2 Gen1 Type-C (Rear) - 8 USB 3.2 Gen1 (4 Rear 4 Front) - 10 USB 2.0 (6 Rear 4 Front) - Realtek 2.5G LAN - Supports M.2 Bottom Heatsink BIOS Flashback   Performance - 14+2+1 Power Phase Design - Featuring sturdy components and completely smooth power delivery to the CPU. Plus it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well. - Dr. MOS - Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs it intelligently delivers higher current for each phase thus providing improved thermal result and superior performance. - Hi-Density Power Connector - CPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors providing a more stable system and reducing the risk of fire during heavy overclocking. - 8 Layer PCB - The 8 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking! Thus it's able to support the latest memory modules with most extreme memory performance! - DDR5 XMP & EXPO Support - Derived from the “built for stable and reliable” designing concept ASRock does not compromise on any details. This motherboard is built with high quality materials enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable satisfying and absolutely no sweat at all.   High Speed M.2 Solution - PCIe Gen5 Blazing M.2 - The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation with a breathtaking 128Gb/s transfer speed it is ready to unleash the full potential of future ultrafast SSDs. - Hyper M.2 Gen4 x4 - Supports PCI Express 4.0 M.2
Quzo.co.uk
Delivery: to United Kingdom
Report
£177.47

Asrock B850 PRO RS, AMD B850, AM5, ATX, 4 DDR5, HDMI, USB-C (DP-alt),

itsupplies.uk
Delivery: to United Kingdom
Report
£179.21

ASRock ASRock B850 Pro RS

Socket AM5 Mainboard / Memory Slot 4 / DDR5 / Storage Connector 4 x M.2 / ATX / Number of PCI-X x 16 Slots 2
Idealo.co.uk
Delivery: in United Kingdom
Report
£175.64

ASRock B850 Pro RS configurations

Price for ASRock B850 Pro RS
ASRock B850 Pro RS WiFi from £178.859 offers
ASRock B850 Pro RS from £175.647 offers
Filters
Models
ASRock (features) 
server