ASUS Prime B450M-K II AMD B450 Socket AM4 micro ATX
- Comprehensive cooling: PCH heatsink, and Fan Xpert
- Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 1 Type-A
- 5X Protection III: Multiple hardware safeguards for all-around system protection
- LED illumination: Lighting control for both PCIe slot and audio trace paths
ASUS Prime B450M II 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 B450M II Series motherboard, you build smart, easy and affordably.
Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B450M II 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.
Cooler by Design
PRIME B450M-K II is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.
Build on a Solid Foundation
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.
PCIe 3.0 M.2
(up to 32 Gbps)
Achieve speed with onboard M.2
M.2 Slot supports 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.
Little Things Make a Big Difference
Prime B450M II series adds 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 unique personal look.
Outstanding Audio
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
| Processor | |
|---|---|
| Compatible processor series | AMD Ryzen 2000 Series, AMD Ryzen Threadripper 1000 Series, AMD Ryzen Threadripper 2000 Series |
| Processor socket | Socket AM4 |
| Processor manufacturer | AMD |
| Memory | |
|---|---|
| Unbuffered memory | Yes |
| Maximum internal memory | 64 GB |
| Supported memory clock speeds | 2133,2400,2666,2800,2933,3000,3200 MHz |
| ECC сompatibility | ECC |
| Memory slots type | DIMM |
| Number of memory slots | 2 |
| Supported memory types | DDR4-SDRAM |
| Storage controllers | |
|---|---|
| RAID levels | 0, 1, 10 |
| Supported storage drive interfaces | M.2, PCI Express 3.0, SATA III |
| Internal I/O | |
|---|---|
| Number of chassis fan connectors | 2 |
| CPU fan connector | Yes |
| ATX Power connector (24-pin) | Yes |
| Front panel audio connector | Yes |
| Audio connector | Yes |
| S/PDIF out connector | Yes |
| Number of SATA III connectors | 4 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| USB 2.0 connectors | 2 |
| Rear panel I/O ports | |
|---|---|
| Microphone in | Yes |
| Headphone outputs | 1 |
| DVI-D ports quantity | 1 |
| VGA (D-Sub) ports quantity | 1 |
| PS/2 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 3 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| Network | |
|---|---|
| Wi-Fi | No |
| Ethernet interface type | Gigabit Ethernet |
| Ethernet LAN | Yes |
| Features | |
|---|---|
| Windows operating systems supported | Windows 10 x64, Windows 7 x64 |
| Audio output channels | 7.1 channels |
| Audio chip | Realtek ALC887-VD2 |
| Motherboard chipset | AMD B450 |
| Motherboard chipset family | AMD |
| Motherboard form factor | micro ATX |
| Component for | PC |
| Expansion slots | |
|---|---|
| PCI Express x16 (Gen 3.x) slots | 2 |
| PCI Express x1 (Gen 2.x) slots | 2 |
| BIOS | |
|---|---|
| ACPI version | 6.1 |
| BIOS memory size | 128 Mbit |
| BIOS type | UEFI AMI |
| Logistics data | |
|---|---|
| Harmonized System (HS) code | 84733020 |
| Weight & dimensions | |
|---|---|
| Height | 259 mm |
| Depth | 244 mm |
| Width | 244 mm |
| Packaging content | |
|---|---|
| Bundled 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 |
| Cables included | SATA |
| Other features | |
|---|---|
| Weight | 840 g |
- manual pdf
- manual pdf
