ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.
Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximizing your productivity.
All-around Energy Efficiency
With the Energy Processing Unit (EPU), you’ll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode.
Fan Xpert 2+
Flexible Air- and Liquid-Cooling Controls
Fan Xpert 2+ software provides comprehensive control over system fans. Auto-Tuning mode intelligently configures all parameters with a single click. There’s also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.
Digi+ VRM Control
Precise Digital Power Control
The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings. It also allows you to fine-tune your CPU for ultimate stability and performance.
The renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.
Advanced Tuning for Serious Tweakers
An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various Advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.
- Search Function - Quickly and easily find the option or setting you need.
- ASUS User Profile - Port configuration settings between different BIOS versions or share them with friends.
Quick and Simple Setup
EZ mode displays vital settings and stats and also offers guided wizards, drag-and-drop functionality, and one-click application of important settings — all to help you get your rig up and running in no time.
- Intuitive Graphical Fan Control - Fine-tune individual fan settings simply by dragging a curve with the mouse.
- EZ XMP - Improve DRAM performance with one click.
Cooler by Design
Prime B550M-K is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.
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.
A dedicated integrated circuit protects each fan header from overheating and overcurrent.
4-Pin PWM/DC Fan
Each onboard chassis fan header supports PWM and DC mode.
Build on a Solid Foundation
Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.
PCIe 4.0 M.2 (up to 64 Gbps)
Achieve speed with onboard M.2
PCIe 4.0 M.2 Slot supports up to 22110 and provide NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on the 3rd Generation AMD Ryzen platform.
USB 3.2 Gen 2
USB 3.2 Gen 2 Type-A
Numerous USB ports support high-end rigs loaded with peripherals, including two rear-panel USB Type-A connectors with fast USB 3.2 Gen 2 connectivity for compatible cases.
Little Things Make a Big Difference
Prime B550 series add the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive interface that let you customize your system to create a uniquely personal look.
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
Audio Shielding - Separates analog/digital signal domains, significantly reducing multi-lateral interference.
Separate Layers for Left and Right Tracks - Ensures minimal crosstalk between audio paths.
Premium Japanese Capacitors - Premium parts provide an immersive sound signature, with exceptional fidelity.
Armoury Crate is a new software utility designed to give you centralized control of supported products, from a single intuitive interface. Armoury Crate provides control of settings for ASUS products, including keyboard and mouse preferences. This software even features dedicated product registration and highlight to help you stay in touch with the ASUS community.
- Driver & Manual Download
- Account Management
Fortified PCIe slot prevents damage
SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, SafeSlot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.
ASUS Prime motherboards have strengthened solder points around both the PCIe and DIMM pins.
World-class circuit-protecting power design
An exclusive circuit design with built-in voltage regulators to protect your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.
DRAM Overcurrent Protection
Short-circuit damage prevention
Onboard resettable fuses prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM to safeguard the lifespan of your system and connected devices.
Stainless-steel Back I/O
3X corrosion-resistance for greater durability
Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.
Pumped-up throughput 2.5X higher surge tolerance
ASUS LANGuard is a hardware-level network protection feature that integrates advanced signal-coupling technology and premium anti-EMI surface-mounted capacitors to improve throughput and ensure a more reliable connection.
Compatible devices and components
The Prime B550 series provides superior compatibility with thousands of components and our Qualified Vendor List (QVL) identifies memory compatibility, giving you more choices for worry-free PC-building experiences.
Every ASUS motherboards is subjected to more than 8,000 hours of stringent tests, including burn-in, environmental, compatibility, software and safety tests to confirm their durability. ASUS reliability surpasses industry standards, ensuring that every component is designed to function flawlessly in any environment.
|CPU Socket||Socket AM4|
|Installed Processors (Max)||0 (1)|
|Supported Processor Manufacturer||AMD|
|Supported Processors||3rd Gen AMD Ryzen Processors|
Rear Panel I/O Ports
|USB Ports||2 x USB 3.1
4 x USB 3.0
|HDMI Port||1 x HDMI 2.1|
|VGA Port||1 x D-Sub|
|Keyboard/Mouse Combo Port||1 x PS/2|
|RJ-45 Ports||1 x RJ-45|
|Digital Port||1 x DVI-D|
|Audio Line In Ports||1 x 3.5mm Jack|
|Audio Line Out Ports||1 x 3.5mm Jack|
|Microphone In Port||1 x 3.5mm Jack|
Internal I/O Connectors
|SATA Connectors||4 x SATA III|
|USB Connectors||1 x USB 3.0 header (supports 4 ports)
2 x USB 2.0 headers (supports 4 ports)
|Speaker||1 x Speaker header|
|Front Panel Connectors||1 x Front Panel
1 x Front Audio
|Cooling Fan Support||1 x CPU fan header
2 x Chassis fan headers
|S/PDIF Connectors||1 x S/PDIF Out header|
|Serial Connectors||1 x COM header|
|TPM Header||1 x SPI TPM header|
|Power Connector Port||1 x 20+4-pin ATX
1 x 4+4-pin EPS
|Other Connectors||1 x M.2, Socket 3, M Key (Type 2242/2260/2280/22110)
1 x M.2, Socket 3, M Key (Type 2242/2260/2280)
|Memory Bus Speed||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|
|Maximum RAM||128 GB|
|Memory Slot||4 x DIMM|
|RAID Format||RAID 0, 1, 10|
|Number of PCI Express Slots||1 x PCI Express 4.0 x16
2 x PCI Express 3.0 x1
|Integrated Graphics Supported||Yes|
|Integrated Sound||Realtek ALC887|
|Integrated Network||Realtek RTL8111H|
|Network Speeds Supported||10/100/1000 Mbps|
|Operating Systems Supported||Microsoft Windows 10 64-bit|
|BIOS||256 Mb Flash ROM, UEFI AMI BIOS|
|Jumpers||1 x Clear CMOS|
|Software Included (may be trial or restricted)||Yes|
|Form Factor||MicroATX Motherboard|
|In The Box||PRIME B550M-K Motherboard
2 x SATA Cables
1 x M.2 Screw Package
|RGB Header Type||None|
|On-board Audio Type||7.1|
|Number of SATA Ports||4 port(s)|
|Number of USB Ports||6 port(s)|
|SATA III Support||Yes|
|USB 3.0 Support||Yes|
|Multi GPU Support||No|
|Motherboard Form Factor||mATX|
|Motherboard Power Connectors||4 + 4-Pin|
|Motherboard Chipset||AMD B550|
|Motherboard Model||ASUS Prime B550M-K|
|USB 3.1 Support||Yes|
|Internal USB3.0 Header||Yes|
|On-board RGB Control||None|
|Memory Speed||4800 MHz|
|Alternative Part Numbers||B550M-K, PRIME B550M-K|
What happens after I've placed an order?
Once you place an order with us you'll receive an email confirmation listing all your items ordered. You should keep this email for future reference as it also acts as your invoice. We then start to process your order; the order is transmitted to our paperless production facility, built, checked for quality, handed to our installation engineers who then proceed with setup of any software you've ordered, then run through our burn-in and stability tests, checked once more for quality and finally it's handed to our dispatch department who will pack the order and book it in for delivery. Depending on how busy we are this entire process takes around 3-5 working days.
What delivery options are available?
Standard weekday deliveries to UK mainland addresses are free of charge
FREE UK Delivery - UPS/DPD Tracked
The majority of orders are sent by DPD courier (www.dpd.co.uk) who provide a fully trackable service. For orders being sent to UK mainland addresses you'll also benefit from DPD's Predict service - assuming you provide us with a valid email address and mobile phone number you'll receive email and SMS notifications from DPD in the morning before delivery with a predicted one hour delivery slot. If this slot turns out to be inconvenient you can re-arrange the delivery for another day, just by replying to the email or text message.
PEACE OF MIND 3 YEAR WARRANTY
When purchasing our computer you will get a 3 Years Warranty as standard, you have the peace of mind in knowing that there will be no cost involved should a problem occur with your hardware - you can simply box up the computer in its original packaging and our courier will call round on a working day convenient to you to collect the computer. We will then repair your computer and return it to you free of any carriage charges. (Software not including e.g. Windows 10 Operating System etc)
- WARRANTY EXCLUSIONS
- Operating Systems including third party software
- Accidental Damage.
- General wear and tear, misuse, neglect or damage by the buyer.
- Incorrectly installed goods.
- Overheating due to excessive dirt/dust build up.
- Consumables (Ink Cartridges, batteries, etc).
- Data Recovery & Backing up of data, files and programmes.
- Remedy of incorrectly installed/incompatible software which is not provided
- Remedy of viruses.
- Compatibility of 3rd party software/hardware.
NOTICE: If we find the computer to be damaged by the software and not the hardware, we still will fix this for you (ALL DATA WILL BE LOST), but this will involve a labour charge of £59.99 plus the delivery charge of £14.99. But of course we will confirm this with you in advance.