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PRIME A320I-K

AMD AM4 mini–ITX motherboard with Aura Sync RGB header, DDR4 3600MHz, 32Gb/s M.2, HDMI, DisplayPort, SATA 6Gb/s, USB 3.0
  • 5X Protection III: Multiple hardware safeguards for all-round protection
  • Native M.2: Lightning-fast storage speeds
  • One-stop controls: Media-acclaimed UEFI BIOS with EZ Flash 3
  • Fan Xpert 2+:Flexible controls for ultimate cooling and quietness, plus GPU-temperature sensing forcooler gaming.
  • ASUS Aura Sync header: Onboard connector for RGB LED strips, easily synced with an ever-growing portfolio of Aura Sync-capable hardware.
OP product mainImage
1 DisplayPort
2 HDMI
3 2 x USB 3.1 Gen1
4 2 x USB 2.0
5 Realtek® LAN
6 2 x USB 3.1 Gen 1
6 8-ch Audio
8

Audio Features

  • Realtek® ALC887 Codec
  • Audio Shielding
  • Dedicated audio PCB Layers
  • Premium Japanese Audio Capacitors
9 DIGI+VRM & EPU
10 DDR4 Support
11 AMD AM4 Socket
12 4 x SATA 3.0 6Gb/s ports
14 AMD A320 Chipset
15 2 x front USB 3.1 Gen1
16 32Gb/s M.2 SATA & PCIE 3.0 x4 mode support(2280)
16 PCI Express 3.0 (GEN3) ASUS SafeSlot Core support
16 2 x front USB 2.0

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.

Reliable Stability and Compatibility
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 III

Hardware safeguards to ensure long-term durability.

350+

DDR4 Compatibility

Industry-leading DDR4 memory compatibility for best flexibility and reassurance.

1000+

Compatible Devices

Compatibility with a range of CPUs, memory modules, graphics cards and more.

8000+

Validation Hours

Extensive testing with latest components for enhanced reliability, compatibility and safety.

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.

ASUS Prime motherboards have strengthened solder points around both the PCIe and DIMM pins.

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.
* ESD result is undertaken by individual LANGaurd

EMI cover

Anti-EMI
surface-mounted
capacitors


* Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

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. * Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

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.

* Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

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.
1
LAN port
ESD TVS diode protection on the LAN circuit.
2
USB connectors
TVS diodes for surface-mount and dual-inline packages.
3
Keyboard and mouse connectors
Additional on-circuit ESD transient-voltage-suppression.

* Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

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.
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.
8000+
VALIDATION HOURS
Temperature and Humidity Test
Ensures components withstand extreme conditions.
Thermal Measurement Test
Ensures that the system remains cool and stable under the heaviest loads.
Insertion Test
Every port and connector is put through repeated installation cycles.
Aging Test
Up to 48-hour aging test ensures reliability.
Power Consumption Test
Checked for world-class energy efficiency.
Temperature and DC Margin Test
Ensures that the motherboard is capable of coping with Voltage fluctuations caused by varying temperatures.
Thermal Shock Test
Ensures ability to survive temperature changes during transportation.
Non-Operation Shock Test
Built to withstand jolts that may occur during shipping.
Burn-In Test
Every component is checked to ensure flawless operation in any environment.
Installation Test
Connector placement is double-checked to ensure hassle-free installation.
Drop Test
Drop tests from various heights ensure durability.
Salt and Spray Test
Tested for I/O reliability, prolonged lifespan and rust-resistance.
Superb Performance
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.

Enjoy the DDR4 benefits with Prime A320 series. (DDR4 vs DDR3)

2X

faster write
read speeds

2X

larger
capacity

20%

lower power
consumption

* Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

Optimized Cooling
Fan Xpert 2+
Dedicated CPU and case fan controls

Prime A320 Series motherboards offer comprehensive control over chassis fan, via the included Fan Xpert 2 software, Auto-tuning mode intelligently configures all parameters with a single clicks.

* Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.

Fan Xpert 2
Game in Your Way
Gaming Audio
Combined onboard features deliver elevated audio 
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced!
1
Noise isolation

Audio shielding ensures precision analog/digital separation and greatly reduced multi-lateral interference.

2
Dedicated Audio PCB Layers

Separate layers for left and right tracks ensures both channels deliver consistent, equal quality.

3
Audio Enjoyment

Premium Japanese audio capacitors provide warm, natural, and immersive sound with exceptional clarity and fidelity.

* Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

All-round Energy Saving
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.

Ultrafast Transfer Speeds
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.


* Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

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!

Easy PC DIY
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!
One-Stop Controls
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.
EZ Flash 3
Update the BIOS via the internet, without leaving the BIOS interface.
S.M.A.R.T
Check your storage device Self-Monitoring, Analysis, and Reporting Technology logs to gauge reliability and possibly to determine potential failures.
Q-Fan Control
You can configure the fan's operating speed manually, or use the easy pre-configured fan profiles to select Standard, Silent, Turbo, or Full Speed modes!
My Favorite
Quickly find tuning options and add preferred tools to the list.
EZ mode
  • Intuitive graphical fan control Fine-tune individual fans simply by dragging a curve with the mouse.
  • EZ XMP Improve DRAM performance with a click.
  • SATA information Easily display SATA port details for device identification.
  • Fast clock adjustment Use mouse controls to quickly change time and date settings.
Advanced mode
  • Last modified log Track last change and save preferred profiles onto a USB drive.
  • SATA port renaming Rename SATA ports for easy identification.
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.


* Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

Aura Sync

Outshine the competition

A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura Sync offers full lighting connected via the motherboard's RGB header, with a variety of functional presets for external LED strips.* And it can all be synced with an ever-growing portfolio of Aura-capable ASUS hardware.

Static
Breathing
Strobing
Rainbow
Color cycle
Comet
Flash &
dash
Wave
Glowing
Yo Yo
Starry
night
Music
effect
CPU
temperature

* The Aura RGB-strip header supports 5050 RGB LED strips with a max power rating of 3A (12V). For maximum brightness, strip length should not exceed 3m.
LED strips and Aura Sync-compatible devices are sold separately.

* Specifications and Outstanding Audio vary by model, and all images are illustrative. Please refer specification pages for full details.

AMD CPU and Chipset Features
AM4 socket for 3rd/2nd/1st Gen AMD Ryzen™ / 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics / Athlon™ with Radeon™ Vega Graphics / 7th Generation A-Series / Athlon X4 Processors
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 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.
  • Reliable Stability and Compatibility
  • Superb Performance
  • Optimized Cooling
  • Game in Your Way
  • All-round Energy Saving
  • Ultrafast Transfer Speed
  • Easy PC DIY
  • One-Stop Controls
  • Aura Sync
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