Description
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The Asus Prime B450M-K II AM4 OEM Motherboard (PRIME B450M-K II) is a compact and reliable Micro-ATX solution engineered for the AMD AM4 platform. It serves as an excellent foundation for budget-conscious home, office, or entry-level gaming builds, providing essential stability, intuitive cooling controls, and broad compatibility with a wide range of AMD Ryzen processors.
This motherboard excels in delivering a straightforward and stable computing experience for everyday tasks. With features like BIOS FlashBack for easy updates and 5X Protection III to safeguard your hardware components, it ensures your system remains durable and functional for years, making it a dependable choice for users who value simplicity and performance in a small form factor.
Reliable Performance — Built on the proven AMD B450 chipset, supporting high-speed memory and stable power delivery for various Ryzen processor generations.
Flexible Connectivity — Equipped with multiple USB ports, including USB 3.2 Gen 1, and versatile display outputs like HDMI, DVI-D, and D-Sub to suit diverse monitor configurations.
Fast Storage Support — Features an onboard M.2 slot supporting up to 32Gbps data transfer speeds, perfect for snappy operating system boot times and quick application loading.
Enhanced Cooling Control — Includes hybrid fan headers and comprehensive cooling management via Fan Xpert or UEFI BIOS to ensure your system stays cool and quiet under varying workloads.
In-Store Advice: Guidance on choosing the right DDR4 UDIMM capacity, speed, and motherboard compatibility for modern desktops and workstations.
Local Support & Advice: Assistance with installation, correct memory & storage drive pairing, and selecting CPU, Memory, SSD, best suited for gaming, productivity, or high-performance workloads.
$119.00
In stock
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| Weight | 1 kg |
|---|---|
| Dimensions | 26 × 26 × 6 cm |
Compatibility: Ensure your desktop motherboard supports DDR4 UDIMM memory and verify your specific Ryzen processor series compatibility before installation.
Usage Notes: Actual performance varies depending on CPU memory controller, dual-channel configuration, BIOS settings, and system limitations.
| Feature | Specification |
| Model Number | PRIME B450M-K II |
| CPU Socket | AM4 |
| Motherboard Chipset | AMD B450 |
| Form Factor | Micro-ATX |
| Memory Support | DDR4 |
| Memory Speed Support | Up to 4400MHz (OC) |
| Memory Slots | 2 |
| PCIe Version | PCIe 3.0 |
| PCIe Slots | 1x x16, 2x x1 |
| Storage Support | 1x M.2 slot + 4x SATA ports |
| Rear I/O Ports | USB 3.2, USB 2.0, HDMI, DVI-D, D-Sub, LAN, Audio |
| Networking | 1Gb Ethernet |
| Audio Codec | Realtek ALC887/897 |
| M.2 Cooling | Not included |
| USB-C Support | No |
| BIOS Flashback | Yes |
| Clear CMOS Button | Jumper |
| Fan Headers | 2x PWM/DC |
| RGB Lighting | Onboard (PCIe/Audio paths) |
| What’s Included | Motherboard, I/O shield, 2x SATA cables, M.2 screw package, documentation |



