ASUS PRIME A520M-K AMD Socket AM4 AMD Ryzen� 3 AMD Ryzen� 5 AMD Ryzen� 7 Socket 90MB1500-M0EAY0

ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime A520 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.

Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime A520 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.

UEFI BIOS
The renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.

Advanced Tuning for Serious Tweakers
An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various Advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.

Search Function
Quickly and easily find the option or setting you need.

ASUS User Profile
Port configuration settings between different BIOS versions or share them with friends.

Quick and Simple Setup
EZ mode displays vital settings and stats and also offers guided wizards, drag-and-drop functionality, and one-click application of important settings - all to help you get your rig up and running in no time.

Intuitive Graphical Fan Control
Fine-tune individual fan settings simply by dragging a curve with the mouse.

EZ XMP
Improve DRAM performance with one click.

Cooler by Design
PRIME A520M-K 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.

Build on a Solid Foundation
Prime A520 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.

M.2 (up to 32 Gbps)
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.

USB 3.2 Gen 1 Type-A
Numerous USB ports support high-end rigs loaded with peripherals, including four rear-panel USB Type-A connectors with fast USB 3.2 Gen 1 connectivity for compatible cases.

Little Things Make a Big Difference
Prime A520 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 you've ever experienced.

Audio Shielding
Separates analog/digital signal domains, significantly reducing multi-lateral interference.

Separate Layer for Left and Right Tracks
Ensures minimal crosstalk between audio paths.

Armoury Crate
Armoury Crate is a new software utility designed to give you centralized control of supported products, from a single intuitive interface. Armoury Crate provides control of settings for ASUS products, including keyboard and mouse preferences. This software even features dedicated product registration and highlight to help you stay in touch with the ASUS community.

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.

Overvoltage Protection
World-class circuit-protecting power design
An exclusive circuit design with built-in voltage regulators to protect your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.

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.

LANGuard
Pumped-up throughput 2.5X higher surge tolerance
ASUS LANGuard is a hardware-level network protection feature that integrates advanced signal-coupling technology and premium anti-EMI surface-mounted capacitors to improve throughput and ensure a more reliable connection.

1000+
Compatible devices and components
The Prime A520 series provides superior compatibility with thousands of components and our Qualified Vendor List (QVL) identifies memory compatibility, giving you more choices for worry-free PC-building experiences.

8000+
Validation hours
Every ASUS motherboard is subjected to more than 8,000 hours of stringent tests, including burn-in, environmental, compatibility, software and safety tests to confirm their durability. ASUS reliability surpasses industry standards, ensuring that every component is designed to function flawlessly in any environment.

Features


AMD AM4 socket: Ready for Ryzen� 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors


Comprehensive cooling: PCH heatsink and Fan Xpert


Ultrafast connectivity: M.2 support, 1 Gb Ethernet, USB 3.2 Gen 1 Type-A


5X Protection III: Multiple hardware safeguards for all-around system protection



Processor


Processor socket

Socket AM4


Compatible processor series

AMD Ryzen� 3, AMD Ryzen� 5, AMD Ryzen� 7


Supported processor sockets

Socket AM4


Processor manufacturer

AMD



Memory


Supported memory types

DDR4-SDRAM


Unbuffered memory

Yes


ECC

Yes


Number of memory slots

2


Maximum internal memory

64 GB


Memory slots type

DIMM


Supported memory clock speeds

2133,2400,2666,2800,2933,3000,3200,3333,3400,3466,3600,3733,3866,4000,4133,4200,4266,4333,4400,4466,4600,4866 MHz


Memory channels

Dual-channel



Rear panel I/O ports


HDMI ports quantity

1


USB 3?2 Gen 1 (3?1 Gen 1) Type-A ports quantity

4


USB connector type

USB Type-A


Microphone in

Yes


VGA (D-Sub) ports quantity

1


Headphone outputs

3


Ethernet LAN (RJ-45) ports

1


HDMI version

2.1


PS/2 ports quantity

1


USB 2?0 ports quantity

2



Internal I/O


Front panel audio connector

Yes


USB 2?0 connectors

2


USB 3?2 Gen 1 (3?1 Gen 1) connectors

1


ATX Power connector (24-pin)

Yes


CPU fan connector

Yes


S/PDIF out connector

Yes


Number of COM connectors

1


12V power connector

Yes


Number of SATA III connectors

4


Number of EATX power connectors

2


Number of chassis fan connectors

1


TPM connector

Yes



Graphics


Parallel processing technology support

Not supported



Weight & dimensions


Width

226 mm


Depth

221 mm



BIOS


BIOS type

UEFI AMI


BIOS memory size

256 Mbit


Clear CMOS jumper

Yes



Packaging content


Cables included

SATA



Storage controllers


Supported storage drive types

HDD & SSD


Number of storage drives supported

5


RAID support

Yes


RAID levels

0, 1, 10


Supported storage drive interfaces

M.2, SATA III



Logistics data


Harmonized System (HS) code

84733020



Network


Wake-on-LAN ready

Yes


LAN controller

Realtek RTL8111H


Wi-Fi

No


Ethernet LAN

Yes


Ethernet interface type

Gigabit Ethernet



Expansion slots


PCI Express x16 (Gen 3?x) slots

1


PCI Express x1 (Gen 3?x) slots

2


Number of M?2 (M) slots

1



Features


Motherboard chipset

AMD A520


Windows operating systems supported

Windows 10 x64, Windows 11


Motherboard chipset family

AMD


Component for

PC


Audio chip

Realtek ALC887 / Realtek ALC897


Audio output channels

7.1 channels


Motherboard form factor

micro ATX