ASUS PRIME B450M-K II specification sheet
Specifications for ASUS PRIME B450M-K II
ASUS PRIME B450M-K II AMD Ryzen 5000 Series Socket AM4 mATX Motherboard
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![ASUS PRIME B450M-K II Gallery image 2 [Size: 987 (W) x 1200 (H)]](i/asus/th200/th200_212346_IMG2.jpg)
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ASUS PRIME B450M-K II AMD Ryzen 5000 Series Socket AM4 mATX Motherboard, AMD B450 Chipset, 2x DDR4 DIMM Memory slots, 1x D-Sub, 1x DVI-D, 1x HDMI 2.0b, 1x PCI-e 3.0 x16 (x16 mode), 2x PCI-e 2.0 x1, 1x M.2 slots, 4x SATA 6Gb/s Ports, Realtek ALC887/897 7.1-channel High Definition audio, USB 3.2 Gen 1 Ports (Type-A), USB 2.0 Ports, USB 3.2 Gen 1 Ports, 1x PS/2 Keyboard/Mouse combo Ports, 1x LAN (RJ45) Ports, 3x audio jacks, 1x BIOS FlashBack buttons
Motherboards: AMD Socket AM4 Motherboard
Motherboards: AMD Socket AM4 Motherboard
Asus
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Overview:
PRIME B450M-K II
AMD B450 (Ryzen AM4 ) micro ATX motherboard with M.2 support, HDMI/DVI-D/D-Sub, SATA 6 Gbps, 1 Gb Ethernet, USB 3.2 Gen 1 Type-A, BIOS FlashBack
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.
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.
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 youve ever experienced.
PRIME B450M-K II
AMD B450 (Ryzen AM4 ) micro ATX motherboard with M.2 support, HDMI/DVI-D/D-Sub, SATA 6 Gbps, 1 Gb Ethernet, USB 3.2 Gen 1 Type-A, BIOS FlashBack
- 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.
- Multiple Temperature Sources
- Smart Protection
- 4-Pin PWM/DC Fan
- Each header can monitor and react to dedicated thermal sensors.
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.
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 youve ever experienced.
Specifications:
| ©2026 Respective owners and brand holders. This table has been carefully researched and generated by ComXpert International CC (//www.comx.co.za), however, errors and omissions may occur. Only references to South Africa apply. All products are sourced in South Africa from the official suppliers and the warranty is that of the local supplier. E&OE. This table and our site's content may be used on condition that this notice and link remains intact and unaltered. | |
Specifications | |
| Product Code | ASUS PRIME B450M-K II |
| CPU | AMD AM4 Socket for AMD Ryzen 5000 Series / 5000 G-Series / 4000 G-Series / 3rd / 2nd / 1st Gen AMD Ryzen / 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics / Athlon with Radeon Vega Graphics Processors |
| Chipset | AMD B450 |
| Memory | 3rd/2nd/1st Gen AMD Ryzen / 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics/ Athlon with Radeon Vega Graphics Processors |
| 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 | |
| ECC Memory (ECC mode) support varies by CPU. | |
| * The maximum memory frequency supported varies by processor. | |
| Graphic | 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 | |
| *Graphics specifications may vary between CPU types. | |
| Expansion Slots | 3rd/2nd/1st Gen AMD Ryzen Processors |
| 1 x PCIe 3.0 x16 (x16 mode) | |
| 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics Processors | |
| 1 x PCIe 3.0 x16 (x8 mode) | |
| AMD Athlon with Radeon Vega Graphics Processors | |
| 1 x PCIe 3.0 x16 (x4 mode) | |
| AMD B450 chipset | |
| 2 x PCIe 2.0 x1 | |
| Storage | Total supports 1 x M.2 slot(s) and 4 x SATA 6Gb/s ports |
| 3rd/2nd/1st Gen AMD Ryzen / 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics : | |
| 1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode) | |
| Athlon with Radeon Vega Graphics Processors : | |
| 1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA mode) | |
| AMD B450 chipset : | |
| 4 x SATA 6Gb/s port(s) | |
| Support Raid 0, 1, 10 | |
| LAN | Realtek RTL8111H |
| ASUS LANGuard | |
| Audio | Realtek ALC887/897 7.1-Channel High Definition Audio CODEC |
| - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback | |
| Audio Feature : | |
| - LED-illuminated design | |
| - Audio Shielding | |
| - Dedicated audio PCB layers | |
| - Premium Japanese audio capacitors | |
| * Choose the chassis with HD audio module in front panel to support 8-channel audio output. | |
| USB Ports | Rear USB Port ( Total 6 ) |
| 4 x USB 3.2 Gen 1 port(s)(4 x Type-A) | |
| 2 x USB 2.0 port(s)(2 x Type-A) | |
| Front USB Port ( Total 6 ) | |
| 2 x USB 3.2 Gen 1 port(s) | |
| 4 x USB 2.0 port(s) | |
| 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 | |
| ASUS 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 | |
| - Aluminum heatsink design | |
| ASUS EZ DIY | |
| - BIOS FlashBack button | |
| - BIOS FlashBack LED | |
| ASUS Lighting Control | |
| Back I/O Ports | 1 x PS/2 keyboard/mouse combo port(s) |
| 1 x DVI-D | |
| 1 x D-Sub | |
| 1 x HDMI | |
| 1 x LAN (RJ45) port(s) | |
| 4 x USB 3.2 Gen 1 (blue) Type-A | |
| 2 x USB 2.0 | |
| 3 x Audio jack(s) | |
| 1 x BIOS FlashBack Button(s) | |
| Internal I/O Ports | 1 x CPU Fan connector(s) (1 x 4 -pin) |
| 1 x Chassis Fan connector(s) (1 x 4 -pin) | |
| 1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s) (19-pin) | |
| 2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s) | |
| 1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode) | |
| 1 x SPI TPM header | |
| 1 x COM port(s) connector(s) | |
| 4 x SATA 6Gb/s connector(s) | |
| 1 x S/PDIF out header(s) | |
| 1 x 24-pin EATX Power connector(s) | |
| 1 x 8-pin ATX 12V Power connector(s) | |
| 1 x Front panel audio connector(s) (AAFP) | |
| 1 x System panel(s) | |
| 1 x Clear CMOS jumper(s) | |
| 1 x COM port header | |
| 1 x Speaker connector | |
| Accessories | User's manual |
| I/O Shield | |
| 2 x SATA 6Gb/s cable(s) | |
| 1 x M.2 Anchor | |
| 1 x Supporting DVD | |
| BIOS | 256 Mb Flash ROM, UEFI AMI BIOS |
| Operating System | Windows 10 64-bit |
| Windows 7 64-bit | |
| Form Factor | mATX Form Factor |
| 8.9 inch x 8.7 inch ( 22.6 cm x 22.1 cm ) | |
| Note | *To support Windows 7 64-bit, please install an AMD Ryzen 2nd Generation or Ryzen 1st Generation Processor. |
Sold by ComX Computers
Specifications are subject to change without notice. E&OE. Prices are a guide only, and are valid on 2023-06-22 only, subject to stock being available.
The specifications displayed above apply to the entire range and may not apply to this specific model. Kindly note that options cannot be changed for most models, and some options are not available in South Africa.