ASUS Prime A520M-K
- Chipset:
- A520
- Socket:
- AM4
- Form Factor:
- Micro-ATX
- Memory:
- DDR4
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Manufacturer: ASUS Last updated: September 11, 2026
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ASUS Prime A520M-K Review
The Prime A520M-K is one of the most affordable current-generation AM4 boards ASUS sells, aimed at budget builders completing a basic Ryzen 5000/4000G/3000 system without discrete overclocking ambitions.
ASUS does not publish an exact VRM phase count for this entry-tier board; it is designed for non-X3D Ryzen chips at stock clocks in basic office or light gaming builds, since the A520 chipset does not support CPU overclocking. Two DDR4 DIMM slots (a notable limitation compared to four-slot boards) support dual-channel operation at standard AMD-supported speeds. Expansion includes a single PCIe 3.0 x16 slot for the GPU. Storage covers a single M.2 slot supporting NVMe drives, alongside SATA ports for additional storage. An onboard Gigabit LAN controller handles wired networking; this board does not include built-in WiFi. Against the Gigabyte A520M DS3H also in this batch, the Prime A520M-K's two-DIMM memory layout is a real limitation for builders who want four memory slots, making the Gigabyte board the better pick for anyone planning to run four sticks of RAM.
Power Delivery and VRM Design
ASUS does not publish an exact VRM phase count for this entry-tier board; it is designed for non-X3D Ryzen chips at stock clocks in basic office or light gaming builds, since the A520 chipset does not support CPU overclocking.
Memory Support
Two DDR4 DIMM slots (a notable limitation compared to four-slot boards) support dual-channel operation at standard AMD-supported speeds.
Expansion and Storage
Expansion includes a single PCIe 3.0 x16 slot for the GPU. Storage covers a single M.2 slot supporting NVMe drives, alongside SATA ports for additional storage.
Connectivity
An onboard Gigabit LAN controller handles wired networking; this board does not include built-in WiFi.
Comparison to Alternatives
Against the Gigabyte A520M DS3H also in this batch, the Prime A520M-K's two-DIMM memory layout is a real limitation for builders who want four memory slots, making the Gigabyte board the better pick for anyone planning to run four sticks of RAM.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- The most budget-conscious AM4 builds without overclocking ambitions
- Basic office or light gaming systems
Not for
- Anyone who wants four memory DIMM slots
- Builds that want CPU overclocking support
Specifications
What these specs meanIdentity
| Model Number | Prime A520M-K |
|---|---|
| Form Factor | Micro-ATX |
Platform and CPU compatibility
| Platform | AMD |
|---|---|
| Socket | AM4 |
| Chipset | A520 |
| Newest CPU Family Supported | Ryzen 5000 |
| Oldest CPU Family Supported | Ryzen 3000 |
| CPU Overclocking Supported | No |
Memory
| Memory Type | DDR4 |
|---|---|
| Memory Slots | 2 |
| Max Memory | 64 GB |
| Memory Channels | 2 |
| Max Memory Capacity | 64 GB |
| Max Rated Memory Speed | 5100 MT/s |
| ECC Memory Support | None |
Expansion & Connectivity
| M.2 Slots | 1 |
|---|---|
| PCIe 5.0 Support | No |
| Wi-Fi Onboard | No |
M.2 storage
| M.2 Slots Onboard | 1 |
|---|
Other storage
| SATA Ports | 4 |
|---|
PCIe expansion
| PCIe x16 Slots | 1 |
|---|---|
| Primary Graphics Slot Gen | PCIe 3.0 |
Rear USB
| Rear USB 5Gbps Ports | 4 |
|---|---|
| Rear USB 2.0 Ports | 2 |
Power delivery
| Vcore Power Stages | Not officially disclosed by ASUS (entry-tier) |
|---|---|
| EPS 12V Configuration | One 8-pin |
Network and audio
| Max Ethernet Speed | 1 Gbps |
|---|---|
| Ethernet Port Count | 1 |
| Wi-Fi Standard | None |
| Audio Codec | Realtek 7.1 Surround Sound High Definition Audio CODEC |
FAQs
What are the key specifications of the ASUS Prime A520M-K (AM4/AMD A520/mATX/Budget/PCIe 3.0)?
Key specs for the ASUS Prime A520M-K: Chipset A520, Socket AM4, Socket Type AM4, Max Memory 64 GB, Max Memory Capacity 64 GB, Form Factor Micro-ATX.
Will the ASUS Prime A520M-K (AM4/AMD A520/mATX/Budget/PCIe 3.0) work with my current setup?
The ASUS Prime A520M-K (AM4/AMD A520/mATX/Budget/PCIe 3.0) lists Socket is AM4. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the ASUS Prime A520M-K (AM4/AMD A520/mATX/Budget/PCIe 3.0) best suited to?
Best suited to: The most budget-conscious AM4 builds without overclocking ambitions; Basic office or light gaming systems.
What are the drawbacks of the ASUS Prime A520M-K (AM4/AMD A520/mATX/Budget/PCIe 3.0)?
Not the best fit for: Anyone who wants four memory DIMM slots; Builds that want CPU overclocking support.
Compare and read more
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