SKU: 83420872085

ASUS PRIME B450M-K II mATX Motherboard - AM4, DDR4, HDMI, M.2, USB3.2

Sale price$652.05 Regular price$724.50
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Description

ASUS PRIME B450M-K II mATX Motherboard - AM4, DDR4, HDMI, M.2, USB3.2The ASUS PRIME B450M K II AM4 Motherboard is a feature rich, high performance solution designed for PC builders who demand versatility and reliability. Built for 3rd 2nd 1st Gen AMD Ryzen processors, including those with Radeon Vega Graphics, this mATX motherboard is a perfect choice for all around PCs and gaming rigs. It supports AMD Socket AM4 and is equipped with the AMD B450 chipset, delivering a robust platform for both entry level and high

The ASUS PRIME B450M-K II AM4 Motherboard is a feature-rich, high-performance solution designed for PC builders who demand versatility and reliability. Built for 3rd/2nd/1st Gen AMD Ryzen™ processors, including those with Radeon™ Vega Graphics, this mATX motherboard is a perfect choice for all-around PCs and gaming rigs. It supports AMD Socket AM4 and is equipped with the AMD B450 chipset, delivering a robust platform for both entry-level and high-performance builds.

With dual-channel memory architecture, the motherboard can handle up to 64GB of DDR4 memory, supporting overclocked speeds up to 4400 MHz (OC). This ensures faster load times, enhanced system responsiveness, and the capability to run memory-intensive applications smoothly. Whether you’re gaming, content creating, or running virtual machines, the ASUS PRIME B450M-K II offers the memory flexibility and speed to handle it all.

Storage options are equally flexible with 1 x M.2 slot (supports PCIe 3.0 x4 & SATA modes) and 4 x SATA 6Gb/s ports, providing ample room for SSDs, HDDs, and RAID configurations. This motherboard supports RAID 0, 1, and 10, giving you the choice between improved speed or redundancy depending on your needs.

For superior graphics performance, the motherboard supports integrated graphics in AMD Ryzen™ with Radeon™ Vega Graphics processors. With D-Sub, DVI-D, and HDMI™ 2.0b outputs, users can connect to a variety of display solutions, ensuring a versatile visual experience.

Connectivity is also a priority with 6 USB ports, including 4 x USB 3.2 Gen 1 Type-A ports for rapid data transfer. The Realtek RTL8111H 1Gb Ethernet ensures stable, high-speed networking, perfect for both gaming and online productivity. Audio is handled by the Realtek 7.1 Surround Sound High Definition Audio CODEC, providing immersive sound quality for gaming and media consumption.

Designed for durability, the ASUS 5X PROTECTION III features such as DIGI+ VRM, LANGuard, and SafeSlot Core provide enhanced protection against power surges, physical damage, and electrostatic discharge. The aluminium heatsink design ensures that your components stay cool even during demanding workloads.

Whether you are building a high-performance gaming PC, a content creation workstation, or a versatile all-around system, the ASUS PRIME B450M-K II AM4 Motherboard offers the specifications, stability, and features necessary to take your build to the next level.

FEATURES:

  • Supports 3rd/2nd/1st Gen AMD Ryzen™ processors with Radeon™ Vega Graphics
  • Up to 64GB DDR4 memory with speeds up to 4400 MHz (OC)
  • 1 x PCIe 3.0 x16 slot for high-speed graphics cards
  • M.2 slot (PCIe 3.0 x4 & SATA modes) for fast storage options
  • 4 x SATA 6Gb/s ports for additional storage flexibility
  • Integrated Realtek 7.1 Surround Sound for immersive audio experiences
  • RAID 0, 1, 10 support for faster speeds or data redundancy
  • Realtek RTL8111H 1Gb Ethernet for reliable networking and gaming
  • ASUS 5X PROTECTION III for enhanced durability and protection
  • Aluminium heatsink design for improved thermal management
  • EZ DIY features, including BIOS FlashBack™ and Q-DIMM/Q-Slot
  • Compact mATX form factor for flexible PC builds in smaller spaces

SPECIFICATIONS:

  • CPU:
  • AMD Socket AM4 for 3rd/2nd/1st Gen AMD Ryzen™ / 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics / Athlon™ with Radeon™ Vega Graphics Processors
  • AMD B450 Chipset
  • Memory:
  • 2 x DIMM, Max. 64GB, DDR4 4400(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2933(O.C.)/2800(O.C.)/2666/2400/2133 MHz, Un-buffered Memory
  • Dual Channel Memory Architecture
  • Graphics:
  • Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics / Athlon™ with Radeon™ Vega Graphics Processors
  • 1 x D-Sub
  • 1 x DVI-D
  • 1 x HDMI™2.0b
  • Expansion Slots_ 
  • 3rd/2nd/1st Gen AMD Ryzen™ Processors
    • 1 x PCIe 3.0 x16 slot (supports x16 mode)
  • 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics Processors
    • 1 x PCIe 3.0 x16 slot (supports x8 mode)
  • Athlon™ with Radeon™ Vega Graphics Processors
    • 1 x PCIe 3.0 x16 (supports x4 mode)
  • AMD B450 Chipset
    • 2 x PCIe 2.0 x1 slots
  • Storage: 
  • Total supports 1 x M.2 slot and 4 x SATA 6Gb/s ports
  • 3rd/2nd/1st Gen AMD Ryzen™ / 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics Processors
  • M.2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)
  • Athlon™ with Radeon™ Vega Graphics Processors
  • M.2 slot (Key M), type 2242/2260/2280 (supports SATA mode)
  • AMD B450 Chipset
  • 4 x SATA 6Gb/s ports
  • Support RAID 0, 1, 10
  • Ethernet: 1 x Realtek RTL8111H 1Gb Ethernet
  • USB:
  • Rear USB (Total 6 ports)
  • 4 x USB 3.2 Gen 1 ports (4 x Type-A)
  • 2 x USB 2.0 ports (2 x Type-A)
  • Front USB (Total 6 ports)
  • 1 x USB 3.2 Gen 1 header supports an additional 2 USB 3.2 Gen 1 ports
  • 2 x USB 2.0 headers support an additional 4 USB 2.0 ports
  • Audio:
  • Realtek 7.1 Surround Sound High Definition Audio CODEC*
    • Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
    • Supports up to 24-bit/192 kHz playback
  • Audio Features_
    • Audio Shielding
    • LED-illuminated audio trace path design
    • Premium Japanese audio capacitors
    • Dedicated audio PCB layers
  • Back Panel I/O Ports_
  • 4 x USB 3.2 Gen 1 ports (4 x Type-A)
  • 2 x USB 2.0 ports (2 x Type-A)
  • 1 x D-Sub port
  • 1 x DVI-D port
  • 1 x HDMI™ port
  • 1 x Realtek RTL8111H 1Gb Ethernet port
  • 3 x Audio jacks
  • 1 x BIOS FlashBack™ button
  • 1 x PS/2 Keyboard/Mouse combo port
  • Internal I/O Connectors_
  • 1 x 4-pin CPU Fan header
  • 1 x 4-pin Chassis Fan header
  • 1 x 24-pin Main Power connector
  • 1 x 8-pin +12V Power connector
  • 1 x M.2 slot (Key M)
  • 4 x SATA 6Gb/s ports
  • 1 x USB 3.2 Gen 1 header supports an additional 2 USB 3.2 Gen 1 ports
  • 2 x USB 2.0 headers support an additional 4 USB 2.0 ports
  • 1 x Clear CMOS header
  • 1 x COM Port header
  • 1 x Front Panel Audio header (AAFP)
  • 1 x S/PDIF Out header
  • 1 x Speaker header
  • 1 x SPI TPM header (14-1pin)
  • 1 x 10-1 pin System Panel header
  • 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
    • Aluminium heatsink design
  • ASUS EZ DIY
    • BIOS FlashBack™ button
    • BIOS FlashBack™ LED
  • ASUS Lighting Control
  • Software Features_
  • ASUS Exclusive Software
  • Armoury Crate
  • AI Suite 3
    • Performance and Power Saving Utility
  •   TurboV EVO
  •   EPU
  •   DIGI+ VRM
  •   Fan Xpert
  •   PC Cleaner
    • EZ update
    • System Information
  • ASUS CPU-Z
  • AI Charger
  • ASUS EZ Installer
  • 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
  • BIOS: 
  • 256 Mb Flash ROM
  • UEFI AMI BIOS
  • Manageability:
  • WOL by PME
  • PXE
  • Operating System_
  • Windows 10 64-bit
  • Windows 7 64-bit
  • Form Factor_
  • mATX
  • 22.6 cm x 22.1 cm

WHAT'S IN THE BOX_

  • ASUS PRIME B450M-K II mATX Motherboard x1
  • SATA 6Gb/s cables x2
  • I/O Shield  x1
  • M.2 ANCHOR x1
  • Support DVD x1
  • User manual x1
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 83420872085

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4.5 ★★★★★
Based on 5 reviews
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Product Reviews
B
Verified Purchase
Bryan
Fort Morgan, US
★★★★★ 5
Huge Upgrade!!!
After just a week of using this mouse, I can confidently say this is the best peripheral purchase I have ever made. I initially wasn't in the market for a new mouse, until my scroll wheel broke on my razer mouse. I decided to just pull the trigger on the X2 Superstrike instead of purchasing another razer mouse. The mouse material feel is excellent, and the wheel is great as well. I've also seen some reviews disliking the skates on the X2 Superstrike, however I personally found them to be great. The haptic feedback mouse click seemed a bit gimmicky before I actually used it. Right off the bat, the mouse click feels incredibly responsive and similar to that of any high quality mouse. You get enough feedback and it doesn't feel that much different from a regular mouse click. But, you also have optionality to adjust a ton of settings, like accuation, feedback strength, etc. For gaming, with the right settings, this genuinely feels amazing, and that's before the performance upgrade. As many other reviewers have noted, it noticeably decreases latency on top of all of this. Another huge perk with this mouse I found, was that it's almost dead silent as well. No more loud clicking! My only critique with the mouse are the side buttons and the size. The side buttons are the only part of the mouse that feel "cheap". Because I use the side buttons often in competitive games, I notice it a lot more than probably most people would. I also have large hands, and this is the smallest mouse I have used. I got used to it pretty quick, but the mouse is on the smaller side. Nonetheless, if you are looking to upgrade your mouse and have the money, I would 100% recommend. This feels as impactful as going from a 60hz monitor to a 144hz+.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
A
Verified Purchase
Anna
New York, US
★★★★★ 5
Works so well I got a second one!
Size: One Size
I rarely write reviews but I came here specifically because this mouse is great! As someone who is technologically challenged I appreciate everything about it-- I bought one of these 5 years ago and use it heavily everyday, it still works like a dream which is why I bought a second one to use on a separate computer. Started using this new one and it was just as easy to set up as the first one, just plugged in the USB piece and was able to use it immediately, no further setup required. As a bonus, it already came with batteries like the last one did (by the way I never turn off my 5 year old mouse and the same batteries are still in it working great). Smooth operation, ergonomic, easy to use, and portable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
M
Verified Purchase
MJ
Lake Worth, US
★★★★★ 5
Rase of use
Size: One Size
LOVE this mouse. Tried several and this is the one you want. This one is High quality and easy to use. Great price. Works and works.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
S
Verified Purchase
Steve
Natrona Heights, US
★★★★★ 5
This is a GREAT Mouse!!!
Size: One Size
This is a great mouse !!! I purchased it almost 6 months ago and it is still working smoothly. I found that Logitech has great products that last. I like all 5 of the functions and use them all on a regular basis. This is perfect for right handed people as it has great gripping as well as fits nicely in my hand
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
T
Verified Purchase
The Ghost
Whiting, US
★★★★★ 4
Have to use the USB Receiver on the Front of Your PC
Size: One Size
This is a great mouse as long as you plug the little USB receiver into the front of your pc and not the back. Plugged into a front port, and the thing just flew, smooth as silk. I moved the receiver to a port on the back, and it got choppy, would freeze, and was really slow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026

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