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.
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 PWM mode for case fans. 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!
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!
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.

Specifications:
Model: PRIME A320M-K
CPU: AMD 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
Chipset: AMD A320
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 3200(O.C.)/3000(O.C.)/2933(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory
AMD 7th Generation A-Series/Athlon X4 Processors
2 x DIMM, Max. 32GB, DDR4 2400/2133 MHz Un-buffered Memory
Dual Channel Memory Architecture
ECC Memory (ECC mode) support varies by CPU.
Graphic: Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics /Athlon™ with Radeon™ Vega Graphics /7th Generation A-Series APU
Multi-VGA output support : HDMI/RGB ports
- Supports HDMI 1.4b with max. resolution 4096  x 2160  @ 24  Hz / 2560  x 1600  @ 60  Hz
- Supports RGB with max. resolution 1920  x 1200  @ 60  Hz
Expansion Slots: 3rd/2nd/1st Gen AMD Ryzen™ Processors
1 x PCIe 3.0/2.0 x16 (x16 mode)
2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics /7th Generation A-series/Athlon X4 Processors
1 x PCIe 3.0/2.0 x16 (x8 mode)
AMD Athlon™ with Radeon™ Vega Graphics Processors
1 x PCIe 3.0/2.0 x16 (x4 mode)
AMD A320 chipset
2 x PCIe 2.0 x1
Storage: AMD A320 chipset :
4 x SATA 6Gb/s port(s), gray,
Support Raid 0, 1, 10
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)
AMD Athlon™ with Radeon™ Vega Graphics/ 7th Generation A-Series/ Athlon™ X4 Processors :
1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA mode)
LAN: Realtek® RTL8111H, 1 x Gigabit LAN Controller(s)
Audio: Realtek® ALC887 8-Channel High Definition Audio CODEC
USB Ports: 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 :
4 x USB 3.1 Gen 1 port(s) (4 at back panel, blue)
AMD A320 chipset :
2 x USB 3.0 port(s) (2 at mid-board)
AMD A320 chipset :
6 x USB 2.0 port(s) (2 at back panel, , 4 at mid-board)
Operating System Support: Windows® 10
Back I/O Ports: 1 x PS/2 keyboard (purple)
1 x PS/2 mouse (green)
1 x D-Sub
1 x HDMI
1 x LAN (RJ45) port(s)
4 x USB 3.1 Gen 1 (blue)
2 x USB 2.0
3 x Audio jack(s)
Form Factor: mATX Form Factor
8.9  inch x 8.7  inch ( 22.6  cm x 22.1  cm )