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ASUS Prime is the next evolution of the ASUS motherboard, born of a pedigree that stretches back to 1989. Our team of world-class engineers are passionate about empowering everyone to enjoy the benefits of customization and tuning, and the driving force behind the development of Prime is to make advanced enthusiast controls easily accessible — maximizing performance, stability and compatibility for the very best DIY PC experiences. Simply stated: it's time for Prime.
Built to Last
ASUS is the world's foremost motherboard manufacturer, renowned for our unique Design Thinking approach. Our exhaustive testing exceeds industry standards, supported by high-quality components for exceptional real-world protection. Our motherboards are proven to be compatible with more than 1,000 components and devices, and each new model undergoes a minimum of 8,000 hours of strict validation. ASUS gives you the peace of mind of knowing that your motherboard is fit for all environments and applications. By choosing ASUS, you also gain the freedom to select outstanding component options, for trouble-free DIY experiences.
5X Protection II
PRIME A320 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 motherboard. That means exceptional protection and stability for your build — thanks to decades of engineering experience from the world's leading motherboard brand.
SafeSlot Core
Fortified PCIe slot prevents damage
SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, Safeslot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.
LANGuard
Pumped-up throughput. 2.5x higher surge tolerance.
ASUS LANGuard is hardware-level networking protection that employs signal-coupling technology and premium anti-EMI surface-mounted capacitors to ensure a more reliable connection and better throughput, plus electrostatically guarded and surge-protected components for greater tolerance to static electricity and improved protection against surges.
Overvoltage Protection
World-class circuit-protecting power design
An exclusive circuit design with built-in voltage regulators to protect your chipset, connectivity ports, and audio codecs from damage caused by unexpected high-level voltages from unstable or inferior power supplies.
DIGI+ VRM
Precision control for stable power
ASUS-exclusive DIGI+ VRM intelligently delivers power to the processor based on real-time demands, reducing energy waste and improving system stability.
DRAM Overcurrent Protection
Short-circuit damage prevention
Onboard resettable fuses prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM to safeguard the lifespan of your system and connected devices.
Stainless-Steel Back I/O
3x corrosion-resistance for greater durability
Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.
ESD Guards
Electrostatic discharge protection
ASUS ESD Guards prevent damage from electrostatic discharge, up to +/- 10kV for air discharge and +/- 6kV for contact discharge, arranged in an active-protective-circuit design that prolongs the life of components.
Proven Compatibility
Tested to be compatible with 1,000+ CPUs, DDR4 memory modules, graphics cards and more
Having the freedom to pick and choose the parts that go into your machine is at the heart of PC DIY. Our extensive certification program focuses on providing the very best compatibility with the widest range of components and devices, giving you the freedom to build and upgrade without frustration. Compatible today and compatible far into the future – that's the ASUS way.
Extensive List of Supported Devices
View supported devices and Qualified Vendor List for compatible memory
The superior compatibility of Prime A320 series is evidenced by our extensive list of supported devices — which includes thousands of compatible components — and our Qualified Vendor List that identifies memory compatibility. That means more choices for worry-free PC-building experiences.
Great Compatibility with ASUS Products
ASUS offers a suite of proprietary components — graphics cards, sound cards, optical drives — that perfectly complement Prime A320 series, so you can complete your custom motherboard build with confidence!
Top-to-bottom Reliability
ASUS motherboards have superb endurance. We verify this by subjecting every board to more than 8,000 hours of stringent tests. A barrage of burn-in, environmental, compatibility, software and safety tests confirm that our motherboards are exceptionally robust. It also shows that ASUS reliability surpasses industry standards, ensuring that every component is designed to function flawlessly in any environment.
DDR4 Support
With DDR4, you'll accelerate memory frequencies up to an incredible to 3200MHz! And ASUS works with almost every DDR4 memory vendor, so you're assured the best compatibility.
Fan Xpert
Dedicated CPU and case fan controls
Exclusive Fan Xpert ensures every fan achieves the best balance of cooling performance and low noise - and with Prime A320 series boards and their hardware-level 4-pin/3-pin PWM/DC mode for case fans, a simple BIOS adjustment lets you run your case fan in PWM/DC. Fan Xpert even includes Auto-Tuning mode to scan and detect all fan characteristics for single-click customization!
Gaming Audio
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced!
Energy Efficient Design
EPU
With the Energy Processing Unit (EPU) you'll enjoy system power savings. EPU automatically optimizes power consumption, and maximizes savings with Away mode.
Speed Up with Onboard M.2 Up to 32Gb/s
With x4 PCI Express 3.0/2.0 bandwidth, M.2 supports up to 32Gb/s data-transfer speeds. It is the perfect choice for an operating system or application drive, making your whole PC or professional apps work as fast as possible.
Instant front-panel USB 3.0 Experience
We've put USB 3.0 right where you need it - four super-speed ports on the front panel. Experience data-transfer speeds up to 10X faster than USB 2.0 with instant plug-and-play connectivity, so no more back-breaking contortions in the hunt for hard-to-reach rear ports!
Safe Motherboard Mounting
Component-free areas to minimize damage risk
Fitting your ASUS motherboard is now safer than ever. The comprehensive component-free 'safe zones' around every case-mounting hole minimizes the risk of damage and short circuits caused by contact - so you'll assemble your PC with total confidence!
Q-Slot
Effortless PCI Express component removal
The large winged clip is easy to reach and easy to operate. Just press the Q-Slot clip lightly, and the graphics card pops out. Installing or removing even the biggest graphics cards is no sweat!
Q-DIMM
Easy memory removal
Even if you work with a smaller case, just push down on the one-sided clip and push or pull RAM modules in or out - removing memory is that simple!
Media-acclaimed UEFI BIOS
The smoothest, slickest mouse-controlled graphical BIOS has been improved to make it even more appealing. Whether you're a PC novice or a seasoned overclocker, EZ and Advanced modes help you find your way, quickly and easily.
AI Suite 3
One-stop access to innovative ASUS features
ASUS AI Suite 3 offers a brand-new user experience through a clearer and more attractive interface with support for larger monitors. It consolidates all exclusive ASUS features into one simple-to-use package, allowing you to supervise overclocking, energy consumption, fan speeds, voltages and more. This all-in-one app offers diverse and easy-to-use functionality, with no need to switch back and forth between different utilities.
Ready for AMD AM4-socket Ryzen, 7th Generation A-series APUs and Athlon APUs
This motherboard supports AMD® Ryzen™ processors, 7th Generation A-series accelerated processing units (APUs) and Athlon™ CPUs. The high-performance Ryzen™ processor supports up to eight cores, and is based on the innovative Zen core architecture . The 7th Generation A-series APUs feature integrated AMD Radeon R-series graphics. AMD AM4-socket processors feature dual-channel DDR4 memory, native 5Gbps USB 3.0 and 16 PCI Express® 3.0/2.0 lanes for superb performance.
AMD A320 Chipset
The AMD A320 chipset delivers outstanding overclocking capabilities for the latest AMD® AM4-socket Ryzen™ processors, 7th Generation A-series APUs and Athlon™ CPUs. It provides two USB 3.0 ports, and four 6Gbps SATA ports for faster data retrieval.
Asus PRIME A320M-K VGA and HDMI AM4 DDR4 micro ATX Motherboard
CPU
| CPU Socket | Socket AM4 |
| CPU Brand | AMD |
| Installed Processors (Max) | 0 (1) |
| Supported Processor Manufacturer | AMD |
| Supported Processors | AMD Ryzen™/7th Generation A-series/Athlon™ Processors |
| 64-bit Support | Yes |
| Socket | AM4 |
Rear Panel I/O Ports
| Microphone In Port | 1 x 3.5mm Jack |
| USB Ports | 4 x USB 3.0 • 2 x USB 2.0 |
| HDMI Port | 1 x HDMI |
| VGA Port | 1 x D-Sub |
| Keyboard Port | 1 x PS/2 |
| Mouse Port | 1 x PS/2 |
| RJ-45 Ports | 1 x RJ-45 |
| Audio Line In Ports | 1 x 3.5mm Jack |
| Audio Line Out Ports | 1 x 3.5mm Jack |
Internal I/O Connectors
| SATA Connectors | 4 x SATA III |
| USB Connectors | 1 x USB 3.0 • 2 x USB 2.0 |
| Speaker | 1 x Speaker header |
| Front Panel Connectors | 1 x Front Panel header • 1 x Front Audio header |
| Cooling Fan Support | 1 x CPU fan header • 1 x Chassis fan header |
| S/PDIF Connectors | 1 x S/PDIF Out header |
| Serial Connectors | 1 x COM header |
| Power Connector Port | 1 x 20+4-pin ATX • 1 x 4-pin ATX 12V |
| Other Connectors | 1 x M.2 Socket 3 for M Key, Type 2242/2260/2280 |
Memory
| Memory Bus Speed | 2666 (Ryzen Only) / 2400 / 2133 MHz |
| Memory Type | DDR4 |
| Maximum RAM | 32 GB |
| Memory Slot | 2 x DIMM |
Motherboard
| Chipset Manufacturer | AMD |
| Northbridge | A320 |
| RAID Supported | Yes |
| RAID Format | RAID 0 • RAID 1 • RAID 10 |
| SATA Supported | Yes |
Expansion
| Number of PCI Express Slots | 1 x PCI Express 3.0 x16 (@ x16 for Ryzen, else x8) • 2 x PCI Express 2.0 x1 |
Graphics Device
| Integrated Graphics Supported | Yes |
Sound
| Integrated Sound | Realtek® ALC 887-VD2 |
Network
| Integrated Network | Realtek® 8111H |
| Network Speeds Supported | 10/100/1000 Mbps |
System Requirements
| Operating Systems Supported | Microsoft Windows 10 64-bit |
System
| BIOS | 128 Mb Flash ROM, UEFI AMI BIOS, PnP, WfM2.0, SM BIOS 3.0, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, My Favorites, Last Modified log, F12 PrintScreen, ASUS DRAM SPD (Serial Presence Detect) memory information, F6 Qfan Control |
| Jumpers | 1 x Clear CMOS |
| Software Included (may be trial or restricted) | ASUS Utilities • ASUS Update • Anti-virus software (OEM) |
| Drivers | Included |
Physical
| Form Factor | Micro ATX Motherboard |
| In The Box | Motherboard • Support DVD • 2 x SATA III Cables • 1 x M.2 Screw • I/O Shield • User Manual |
| Width | 226 mm |
| Length | 221 mm |
Key Features
| Skip Audio Test | No |
| RGB Header Type | None |
| Addressable RGB | No |
| Firewire | No |
| Wireless Network | No |
| Main Colour | Black |
| Socket(s) | AM4 |
| Memory Channel | Dual |
| On-board Audio Type | 7.1 |
| Number of SATA Ports | 4 port(s) |
| Number of USB Ports | 6 port(s) |
| SATA III Support | Yes |
| USB 3.0 Support | Yes |
| Multi GPU Support | No |
| VGA Connection | Yes |
| DVI Connection | No |
| HDMI Connection | Yes |
| DisplayPort Connection | No |
| Motherboard Form Factor | mATX |
| Motherboard Power Connectors | 4-Pin |
| Motherboard Chipset | AMD A320 |
| Thunderbolt | No |
| Motherboard Model | ASUS PRIME A320M-K |
| USB 3.1 Support | No |
| Internal USB3.0 Header | Yes |
| M.2 Support | Yes |
| On-board RGB Control | None |
Wireless Communications
| Bluetooth | No |
Warranty
| Warranty | 1 Year |
Item Details
| Manufacturer | ASUS |
| Manufacturer Code | 90MB0TV0-M0EAY0 |
| EAN | 4712900672060 |
| UPC | 889349672068 |
| Condition | New |
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