MICRO-ATX MOTHERBOARD WITH AURA SYNC
The ASUS Prime B450M K II motherboard provides the solid foundation needed for your first build, plus flexibility to grow with your ambitions. ASUS have melded all the good stuff that's packed into AMD Ryzen™ processors with essential ASUS design and engineering, so you benefit from industry-leading technologies — including automated system tuning, comprehensive cooling controls, and immersive onboard audio. When you build with an ASUS Prime B450M II Series motherboard, you build smart, easy and affordably.
AMD B450 Chipset
AM4 CPU Socket
Micro ATX Form Factor
Enhanced UEFI BIOS
EASILY FIND YOUR WAY WITH EZ AND ADVANCED MODES
The UEFI BIOS is an early waypoint on any PC-building journey, and Prime B450M II Series has one of the best in the business. The EZ mode makes it incredible easy to overclock a CPU to improve performance or even configure a RAID array for faster data retrieval and backups. Whether you're a PC novice or a seasoned overclocker, EZ and Advanced modes will help you quickly find your way, quickly and easily.
Can configure the fan's operating speed manually, or use the easy pre-configured fan profiles to select Standard, Silent, Turbo or Full Speed modes, plus automatic switch to full speed if the temperature hits 75°C.
When you're ready for a deeper dive, Advanced mode enables full control over every aspect of the motherboard — with a built-in Search function to find the setting you need in the blink of an eye.
Cooler by Design
RESPONSIVE SURFACE CALIBRATION
Prime B450M-A II is engineered with great comprehensive cooling controls, configurable via ASUS Fan Xpert software or the UEFI BIOS. Each header can monitor and react to dedicated thermal sensors. Each onboard CHA FAN header supports PWM and DC mode. A dedicated integrated circuit protects the fan headers, including short circuit and over temperature protections.
Speed Up With Onboard M.2
ULTRAFAST M.2 CONNECTIVITY
Prime B450M II 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. The onboard M.2 Slot supports drives up to 80mm and data-transfer speed up to 32Gbps via x4 PCI Express® 3.0 bandwidth. It‘s the perfect choice for an operating system or application drive, providing fast access to data.
USB 3.2 Gen 2 Type A Ports
UPDATE WITH BIOS FLASHBACK™
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. Simply drop the (UEFI) BIOS file onto a FAT32 formatted USB stick, plug it into the USB BIOS FlashBack™ port and press the button. Updates can even be performed without having memory or a CPU installed.
One-stop Efficient Controls
VERSATILE ENERGY PRODUCTIVITY
The Energy Processing Unit (EPU) automatically amplifies power consumption and maximises savings with Away mode. The smart setting that produces an extreme energy-saving setup by shutting down unused I/O controllers, with the EPU you will appreciate system-wide power reserves.
ASUS SafeSlot Protection
PROTECT YOUR GRAPHICS CARD INVESTMENT
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.
COMBINED FEATURES DELIVER ELEVATED AUDIO
ASUS intelligent design combined with the finest hardware produce audio quality unlike anything you have ever experienced. With Audio Shielding, this separates layers for left and right tracks and analogue/digital signal domains, significantly decreasing multi-lateral interference. Exceptional components and Japanese-made audio capacitors, deliver an immersive sound signature with excellent fidelity.
B450 Tried and Tested
TOP-TO-BOTTOM RELIABILITY WITH 8000+ VALIDATION HOURS
The Prime B450M II 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 motherboard 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.
TEMPERATURE AND HUMIDITY TESTS
Ensures components withstand extreme conditions.
THERMAL MEASUREMENT TESTS
Ensures that the system remains cool and stable under the heaviest loads.
Every port and connector is put through repeated installation cycles.
Up to 48-hour aging test ensures reliability.
Delivers world-class energy efficiency.
TEMPERATURE AND DC MARGIN TESTS
Ensures that the motherboard is capable of coping with voltages fluctuations caused by varying temperatures.
Ensures ability to survive temperature changes during transportation.
NON-OPERATION SHOCK TESTS
Built to withstand jolts that may occur during shipping.
Every component is checked to ensure flawless operation.
Connector placement is double-checked to ensure hassle-free installation.
Drop tests from various heights ensure durability.
SALT AND SPRAY TESTS
Tested for I/O reliability, prolonged lifespan and rust-resistance.
1000+ COMPATIBLE DEVICES
Compatibility with a range of CPUs, memory modules, graphics cards and more.
8000+ VALIDATION HOURS
Extensive testing with latest components for enhanced reliability, compatibility and safety.
|Product Type||Motherboard - micro ATX|
|Chipset Type||AMD B450|
|Processor Socket||Socket AM4|
|Max Processors Qty||1|
|Compatible Processors||Athlon, Ryzen (supports 1st,2nd and 3rd Generation Ryzen / Ryzen with Radeon Vega Graphics and 2nd Generation Ryzen with Radeon Graphics / Athlon with Radeon Vega Graphics)|
|Max Size||64 GB|
|Bus Clock||2400 MHz, 2133 MHz, 2666 MHz, 2800 MHz (O.C.), 3000 MHz (O.C.), 3200 MHz (O.C.), 3400 MHz (O.C.), 3466 MHz (O.C.), 3733 MHz (O.C.), 3600 MHz (O.C.), 3866 MHz (O.C.), 4000 MHz (O.C.), 4400 MHz (O.C.), 3533 MHz (O.C.)|
|Supported RAM Integrity Check||Non-ECC, ECC|
|Registered or Buffered||Unbuffered|
|Features||Dual channel memory architecture|
|Type||HD Audio (8-channel)|
|Compliant Standards||High Definition Audio|
|Network Controller||Realtek RTL8111H|
|Network Interfaces||Gigabit Ethernet|
Expansion / Connectivity
|Expansion Slots||1 x CPU ¦ 2 x DIMM 288-pin ¦ 1 x PCIe 3.0 x16 (x16 mode (with 1st, 2nd and 3rd Generation Ryzen CPU); x8 mode (with Ryzen with Radeon Vega Graphics and 2nd Generation Ryzen with Radeon Vega Graphics); x4 mode (with Athlon with Radeon Vega Graphics)) ¦ 2 x PCIe 2.0 x1|
|Storage Interfaces||SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 ¦ SATA-600 / PCIe 3.0 -connectors: 1 x M.2|
|Interfaces||1 x LAN (Gigabit Ethernet) ¦ 1 x PS/2 keyboard / mouse ¦ 1 x audio line-in - mini-jack ¦ 1 x audio line-out - mini-jack ¦ 1 x microphone - mini-jack ¦ 1 x HDMI ¦ 1 x DVI-D ¦ 2 x USB 2.0 ¦ 4 x USB 3.2 Gen 1 ¦ 1 x VGA|
|Internal Interfaces||4 x USB 2.0 - header ¦ 2 x USB 3.2 Gen 1 - header ¦ Serial - header ¦ 1 x SPDIF out - header ¦ 1 x audio - header ¦ 1 x speaker - header|
|Power Connectors||24-pin main power connector, 8-pin ATX12V connector|
|BIOS Features||BIOS FlashBack, UEFI BIOS, ASUS EZ Flash 3|
|Hardware Features||Jack retasking, ASUS Q-Design, ASUS TurboV EVO, Q-DIMM, ASUS EZ DIY, Q-Slot, CrashFree BIOS 3, audio jack detect technology, ASUS EPU (Energy Processing Unit), ASUS Fan Xpert, ASUS DIGI+ VRM, ASUS Stainless Steel Back I/O, LANGuard, ASUS Overvoltage Protection, Lighting Control, ASUS 5X Protection III, ASUS SafeSlot Core, Armoury Crate|
|Included Accessories||I/O back cover, 1 x M.2 anchor|
|Cables Included||2 x Serial ATA cable|
|Software Included||Drivers & Utilities, ASUS AI Charger, ASUS CPU-Z, ASUS AI Suite III, ASUS EZ Update, PC Cleaner, ASUS EZ Flash 3, DAEMON Tools, WinRAR, Norton AntiVirus (60 days trial)|