|CPU Socket||AMD AM4|
ASUS Prime B450 Series motherboards provide the solid foundation needed for your first build, plus flexibility to grow with your ambitions. We've 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 B450 Series motherboard, you build smart, easy and affordably.
Tune it your way
Cooler by design
Prime B450 Series features the most comprehensive cooling controls ever, configurable via ASUS Fan Xpert software or the UEFI BIOS
Make your memory faster
Featuring an array of trace layout tweaks that improve memory stability, PRIME B450 Series provides a potent foundation for your build. With comprehensive support for the full gamut of Ryzen memory configurations – from entry-level to performance-oriented — PRIME B450 Series is a versatile all-rounder that can work or play.
Media-acclaimed UEFI BIOS
The UEFI BIOS is an early waypoint on any PC-building journey, and Prime B450 Series has one of the best in the business.
USB 3.1 Gen 2 Type-A
Ultimate-speed 10Gbps with USB 3.1 Gen 2 onboard
With backward-compatible USB 3.1 Gen 2 Type-A™, you'll experience ultimate connection flexibility and blazing data-transfer speeds of up to 10Gbps — twice as fast as standard USB 3.1 Gen 1.
USB 3.1 Gen 1 front-panel connector
USB 3.1 Gen 1 is right where you need it, with two super-speed headers for the front panel. Experience data-transfer speeds up to 10X faster than USB 2.0 with instant plug-and-play connectivity, and avoid back-breaking contortions in the hunt for hard-to-reach rear ports.
Speed up with onboard M.2
With x4 PCI Express® 3.0/2.0 bandwidth, M.2 supports up to 32Gbps data-transfer speeds. It's the perfect choice for an operating system or application drive, providing fast access to data.
Affordable acceleration for any hard drive
AMD StoreMI technology is a software utility that accelerates any drive for better system responsiveness with reduced startup and software load times. It combines SSD performance with the affordability and capacity of an HDD by automatically moving frequently accessed data to dedicated SSD storage.
Native M.2/NVMe PCIe RAID Support for Lightning Fast Storage Speed!
Not satisfied with single-storage device read/write speeds? Then join the fast lane and build a RAID 0 array using two PCIe storage drives to enjoy data transfers at lightning speeds.
Reliable stability and compatibility
Built to Last
ASUS is the world's leading motherboard brand. Our motherboards are extensively tested for compatibility with more than 1,000 components and devices, and each new model undergoes a minimum of 8,000 hours of strict validation — offering the peace of mind of knowing that your ASUS motherboard is fit for all environments and applications. Choosing ASUS is an assurance of trouble-free DIY experiences.
5X Protection III
Prime B450 Series motherboards are engineered with industry-leading 5X Protection III, employing the finest components, excellent circuit design and exacting standards to guarantee the quality and long-term durability of your investment. That means exceptional protection and stability for your build — thanks to decades of engineering experience from the world's leading motherboard brand.
Visual beauty, virtual worlds
Outshine the competition
A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura Sync offers full lighting connected via the motherboard's RGB header, with a variety of functional presets for external LED strips.* And it can all be synced with an ever-growing portfolio of Aura-capable ASUS hardware.
* The Aura RGB-strip header supports 5050 RGB LED strips with a max power rating of 3A (12V). For maximum brightness, strip length should not exceed 3m. LED strips and Aura Sync-compatible devices are sold separately.
- Fan Xpert 2+: Flexible controls for ultimate cooling and silence, plus GPU-temperature sensing for cooler gaming
- Ultrafast connectivity: Supreme flexibility with USB 3.1 Gen 2 and native M.2
- ASUS Aura Sync header: Onboard connector for RGB LED strips, easily synced with an ever-growing portfolio of Aura Sync-capable hardware
- 5X Protection III: Multiple hardware safeguards for all-around system protection
|Installed Processors (Max):||0 (1)|
|Supported Processor Manufacturer:||AMD|
|Supported Processors:||AMD Ryzen 2nd Generation/Ryzen with Radeon Vega Graphics/Ryzen 1st Generation Processors|
|RAID Format:||RAID 0, 1, 10|
|Rear Panel I/O Ports|
|USB Ports:||2 x USB 3.1 4 x USB 3.0|
|Keyboard Port:||1 x PS/2|
|Mouse Port:||1 x PS/2|
|RJ-45 Ports:||1 x RJ-45|
|HDMI Port:||1 x HDMI|
|VGA Port:||1 x D-Sub|
|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|
|Front Panel Connectors:||1 x Front Panel 1 x Front Audio|
|Cooling Fan Support:||1 x CPU fan 2 x Chassis fans|
|SATA Connectors:||6 x SATA III|
|S/PDIF Connectors:||1 x S/PDIF Out|
|USB Connectors:||1 x USB 3.0 2 x USB 2.0|
|Serial Connectors:||1 x COM|
|Speaker:||1 x Speaker|
|TPM Header:||1 x TPM|
|Power Connector Port:||1 x 20+4-pin ATX 1 x 4+4-pin ATX12V|
|Other Connectors:||1 x M.2, Socket 3, M Key (Type 2242/2260/2280/22110) 1 x AURA RGB strip header|
|Number of PCI Express Slots:||1 x PCI Express 3.0 x16 (@ x16 or x8 with G Processors) 2 x PCI Express 2.0 x1|
|Memory Bus Speed:||3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz|
|Maximum RAM:||64 GB|
|Memory Slot:||4 x DIMM|
|Integrated Graphics Supported:||Yes|
|Integrated Sound:||Realtek ALC887|
|Integrated Network:||Realtek RTL8111H|
|Network Speeds Supported:||10/100/1000 Mbps|
|Operating Systems Supported:||Windows 10 64-bit|
|BIOS:||128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, F3 My Favorite, Last Modified log, F12 PrintScreen, ASUS DRAM SPD (Serial Presence Detect) memory information, F6 Qfan Control|
|Jumpers:||1 x Clear CMOS|
|Form Factor:||MicroATX Motherboard|
|In The Box:||PRIME B450M-A Motherboard User Manual I/O Shield 2 x SATA Cables M.2 Screw Support DVD|