ASUS PRIME A320M-A AM4 Micro-ATX Motherboard

ASUS PRIME A320M-A AM4 Micro-ATX Motherboard

ASUS PRIME A320M-A AM4 Micro-ATX Motherboard

ASUS PRIME A320M-A AM4 Micro-ATX Motherboard

ASUS PRIME A320M-A AM4 Micro-ATX Motherboard

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Expected availability: 7-14 business days

Product Highlights

  • Micro-ATX Form Factor
  • AMD A320 Chipset
  • AM4 Socket
  • 4 x Dual-Channel DDR4-3200 (OC)
  • 6 x SATA III, 2 x M.2
  • 1 x PCIe 3.0/2.0 x16 Slot
  • 2 x PCIe 2.0 x1 Slots
  • Realtek ALC887 HD Audio Codec
  • Realtek RTL8111H Gigabit LAN Controller
  • Windows 10 Compatible
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  • 1Description

Ready for AMD Ryzen, 7th Generation A-Series, and Athlon processors, the PRIME A320M-A AM4 Micro-ATX Motherboard from ASUS delivers customizable performance. 5X Protection III delivers hardware-level safeguards for component longevity and reliability, SafeSlot Core helps prevent damage from heavyweight GPUs, FanXpert delivers controls for optimized cooling, and 8-channel HD audio provides warm and immersive sound with LED illumination. This motherboard is designed to fit in micro-ATX sized cases and supports the AM4 socket and the AMD A320 chipset. This motherboard is compatible with Windows 10 (64-bit).

The micro-ATX form factor of the PRIME A320M-A can support up to 64GB of DDR4 RAM over four dual-channel slots, or 16GB per slot. Ryzen processors can support memory speeds of 3200 (OC), 2933 (OC), 2666, 2400, and 2133 MHz ECC and non-ECC unbuffered memory, while A-Series and Athlon processors support speeds of 2400 and 2133 MHz non-ECC unbuffered memory. Ryzen processors also support up to four SATA III 6 Gb/s ports with compatibility for RAID 0 and 1, while A-Series and Athlon processors support two SATA III 6 Gb/s ports. All processor types also support one M.2 Socket 3, with M key, type 2242, 2260, and 2280 for both SATA and PCIe drives. While Ryzen processors support PCIe 3.0 x4, A-Series and Athlon processors only support PCIe 3.0 x2.

There are also a total of four USB 3.0 Type-A ports (back panel), two USB 3.0 ports (mid-board), two USB 2.0 Type-A ports (back panel), and two USB 2.0 connectors that support an additional four USB 2.0 ports (mid-board). For those looking to expand their system using PCIe, there are two PCIe 2.0 x1 slots. Additionally, Ryzen processors support one PCIe 3.0/2.0 x16 slot (x16 mode) and A-Series & Athlon processors support one PCIe 3.0/2.0 x16 slot (x8 mode).

For delivering sharp, clear graphics, this motherboard supports AMD Radeon R Series Graphics in the 7th Generation A-Series APU with HDMI 1.4b, DVI-D, and VGA outputs. HDMI 1.4b supports a maximum resolution of 4096 x 2160 @ 24 Hz or 2560 x 1600 @ 60 Hz, and both DVI-D and VGA support a maximum resolution of 1920 x 1200 @ 60 Hz. Integrated graphics has access to up to 2048MB of shared memory and users who don't opt for A-Series processors with integrated graphics will need to purchase a compatible dedicated GPU of their choice.

Using the 8-Channel Realtek ALC887 HD audio codec, the PRIME A320M-A can support audio with higher fidelity than standard controllers. Audio can also be output using the integrated three audio outputs or S/PDIF output. PRIME A320M-A AM4 Micro-ATX Motherboard is equipped with features such as SafeSlot Core, LANGuard, overvoltage protection, a stainless steel back, DIGI+ VRM digital power design, AI Suite 3, Ai Charger, Turbo LAN, CrashFree BIOS 3, EZ Flash 3, UEFI BIOS, and more. Included is an I/O shield, two SATA III 6 Gb/s cables, one M.2 screw package, and a supporting DVD. This motherboard is protected by a limited 3-year warranty.

General Features

Reliable Stability and Compatibility

5X Protection III
PRIME A320 series motherboards are engineered with 5X Protection III, employing fine components, excellent circuit design, and exacting standards to help guarantee the quality and long-term durability of your motherboard. That means strong protection and stability for your build.
SafeSlot Core - Fortified PCIe Slot
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 up to a 1.6x stronger retention and up to a 1.3x greater shearing resistance than standard expansion slots. ASUS Prime motherboards have strengthened solder points around both the PCIe and DIMM pins.
ASUS LANGuard is hardware-level networking protection that employs signal-coupling technology and premium anti-EMI surface-mounted capacitors to help 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
An exclusive circuit design with built-in voltage regulators to help protect your chipset, connectivity ports, and audio codecs from damage caused by unexpected high-level voltages from unstable or inferior power supplies.
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
Onboard resettable fuses help prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM to help safeguard the lifespan of your system and connected devices.
Stainless-Steel Back I/O
Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's up to three times longer than ordinary panels.
ESD Guards
ASUS ESD Guards help 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. Protection is provided for the LAN port, USB connectors, VGA connectors, and keyboard/mouse connectors.
ASUS PRIME A320M-A has been tested to be compatible with 1000+ CPUs, DDR4 memory modules, graphics cards, and more.
Compatibility with ASUS Products
ASUS offers a suite of proprietary components - graphics cards, sound cards, optical drives, and more - that complement Prime A320 series, so you can complete your custom motherboard build with confidence.
ASUS motherboards have superb endurance. They verify this by subjecting every board to more than 8000 hours of stringent tests. A barrage of burn-in, environmental, compatibility, software, and safety tests confirm that ASUS motherboards are robust. It also shows that ASUS components are designed to function flawlessly in almost any environment.
8000+ Hours Validation Hours
Temperature and Humidity Test
Helps ensure components can withstand extreme conditions.

Thermal Measurement Test
Helps ensure the system remains cool and stable under heavy loads.

Insertion Test
Each port and connector is put through repeated installation cycles.

Aging Test
An aging test that lasts up to 48 hours help ensure reliability.

Power Consumption Test
Checks for energy efficiency.

Temperature and DC Margin Test
Helps ensure that the motherboard is capable of coping with voltage fluctuations caused by varying temperatures.

Thermal Shock Test
Helps ensure the ability to survive temperature changes during transportation.

Non-Operating Shock Test
This motherboard is built to withstand jolts that may occur during shipping.

Burn-In Test
Every component is checked to help ensure operating in almost any environment.

Installation Test
Connector placement is double-checked to help ensure a user-friendly installation.

Drop Test
Drop tests are performed from various heights to help ensure durability.

Salt and Spray Test
Tests are performed to help ensure I/O reliability, lifespan, and rust-resistance.


DDR4 Support
With DDR4, you'll accelerate memory frequencies up to 3200 MHz. ASUS also works with almost every DDR4 memory vendor, so you're assured greater compatibility. When compared to DDR3, DDR4 memory has faster reader and writer speeds, larger capacities, and lower power consumption.

Optimized Cooling

Fan Xpert
Fan Xpert helps ensure every fan achieves the best balance of cooling performance and low noise. 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 fan characteristics for single-click customization.

Game in Your Way

Gaming Audio
An intelligent design and advanced hardware help create elevated audio
Noise Isolation
Audio shielding helps ensure precision analog/digital separation and greatly reduced multi-lateral interference.
Dedicated Audio PCB Layers
Separate layers for left and right tracks help ensure both channels deliver consistent, equal quality.
Audio Enjoyment
Japanese audio capacitors provide warm, natural, and immersive sound with strong clarity and fidelity.

Energy Saving

EPU - Energy Efficient Design
With the Energy Processing Unit (EPU), you'll enjoy system power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode.

Fast Transfer Speeds

M.2 up to 32 Gb/s
With PCI Express 3.0/2.0 x4 bandwidth, M.2 supports data transfer speeds of up to 32 Gb/s. It is a good choice for an operating system or application drive, making your whole PC or professional apps work faster.
Front Panel USB 3.0
ASUS has put USB 3.0 right where you need it - two 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
Fitting your ASUS motherboard is now safer. The comprehensive component-free 'safe zones' around every case-mounting hole help minimize the risk of damage and short circuits caused by contact.
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 now easier than before.
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

The 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.
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 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
Graphical Fan Control
Fine-tune individual fans by dragging a curve with the mouse.

Improve DRAM performance with a click.

SATA Information
Display SATA port details for device identification.

Fast Clock Adjustment
Use mouse controls to change the time and date settings.
Advanced Mode
Last Modified Log
Track last changes and save preferred profiles to a USB drive.

SATA Port Renaming
Rename SATA ports for easy identification.
AI Suite 3
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.

AMD CPU and Chipset Features

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 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 5 Gb/s USB 3.0, and 16 x PCI Express 3.0/2.0 lanes for improved performance.
AMD A320 Chipset
The AMD A320 chipset delivers strong capabilities for AMD AM4-socket Ryzen processors, 7th Generation A-series APUs, and Athlon CPUs. It provides two USB 3.0 ports and four SATA III 6 Gb/s ports for faster data retrieval.
UPC: 889349765371
In the Box
ASUS PRIME A320M-A AM4 Micro-ATX Motherboard
  • I/O Shield
  • 2 x SATA III 6 Gb/s Cables
  • 1 x M.2 Screw Package
  • 1 x Supporting DVD
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description
    CPU - AMD AM4 Socket for AMD Ryzen, 7th Generation A-series, and Athlon processors
    - Supports CPUs up to 8 cores
    Chipset - AMD A320
    Memory AMD Ryzen Processors
    - 4 x DIMM, Max. 64 GB
    - DDR4 3200 (O.C.), 2933 (O.C.), 2666, 2400, 2133 MHz ECC and non-ECC unbuffered memory

    AMD 7th Generation A-series/Athlon Processors
    - 4 x DIMM, Max. 64 GB
    - DDR4 2400/2133 MHz non-ECC unbuffered memory

    - Dual-Channel Memory Architecture
    Graphics Integrated AMD Radeon R Series Graphics in the 7th Generation A-Series APU
    Multi-VGA Output supports HDMI, DVI, and VGA ports
    - Supports HDMI 1.4b with a max resolution 4096 x 2160 @ 24 Hz / 2560 x 1600 @ 60 Hz
    - Supports DVI-D with a max resolution 1920 x 1200 @ 60 Hz
    - Supports VGA with a max resolution 1920 x 1200 @ 60 Hz
    Maximum shared memory of 2048 MB
    Expansion Slots AMD Ryzen Processors
    - 1 x PCIe 3.0/2.0 x16 (x16 mode)

    AMD 7th Generation A-series/Athlon Processors
    - 1 x PCIe 3.0/2.0 x16 (x8 mode)

    AMD A320 Chipset
    - 2 x PCIe 2.0 x1
    Audio - Realtek ALC887 8-Channel High Definition Audio codec
    Back I/O Ports - 1 x PS/2 keyboard (purple)
    - 1 x PS/2 mouse (green)
    - 1 x DVI-D
    - 1 x VGA
    - 1 x HDMI 1.4b
    - 1 x LAN (RJ45) port
    - 4 x USB 3.1 Gen-1 (blue)
    - 2 x USB 2.0
    - 3 x Audio jacks
    Internal I/O Ports - 1 x USB 3.0 connector supports an additional 2 USB 3.0 ports (19-pin)
    - 2 x USB 2.0 connectors support an additional 4 USB 2.0 ports
    - 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110 storage devices (supports SATA & PCIE modes)
    - 1 x COM port connector
    - 6 x SATA III 6 Gb/s connectors
    - 1 x CPU Fan connector (1 x 4-pin)
    - 1 x Chassis Fan connector (1 x 4-pin)
    - 1 x S/PDIF out header
    - 1 x 24-pin EATX Power connector
    - 1 x 8-pin ATX 12V Power connector
    - 1 x Front panel audio connector (AAFP)
    - 1 x System panel
    - 1 x Clear CMOS jumper
    - 1 x Speaker connector
    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
    Operating System Support - Windows 10 (64-bit)
    Form Factor - Micro-ATX
    - 9.60 x 9.45" / 24.4 x 24.0 cm
    Packaging Info
    Package Weight 2.0 lb
    Box Dimensions (LxWxH) 10.7 x 10.3 x 2.1"
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