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MOTHERBOARDS

ASUS PRIME A520M-R

Global manufacturer specification

CPU socket
AM4
Chipset
AMD A520 Chipset
Form factor and dimensions
micro-ATX Form Factor 9.3 inch x 7.6 inch ( 23.6 cm x 19.3 cm )

PRIME A520M-R motherboard, identified in the ASUS Global catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.

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THE ACTUAL PRODUCT
ASUS PRIME A520M-R official product image
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with ASUS PRIME A520M-E/CSM
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Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.

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The nearest checked motherboards by key specifications, with what differs from the ASUS PRIME A520M-R. The first matches the Compare button above.

The useful part.

Key strengths

Published motherboard interfaces and configuration are available from the exact-model ASUS specification source.

Manufacturer source
The checks that matter.

Before you buy

Compatibility and maximum operating modes depend on the source’s stated hardware, firmware and connection requirements; manufacturer figures are not independent measurements.

Manufacturer source
Build around it.

Works with

Products in this catalogue that list the same socket or memory type as the ASUS PRIME A520M-R. A shared socket or memory type is necessary but not sufficient: check the exact CPU and memory support lists, and the BIOS version, before buying.

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Every specification. With its source.

Full specifications

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Exact configuration: Global manufacturer specification · PRIME A520M-R

13 specifications in 9 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.

Platform & board

3 items
CPU socket
AM4Source
Chipset
AMD A520 ChipsetSource
Form factor and dimensions
micro-ATX Form Factor 9.3 inch x 7.6 inch ( 23.6 cm x 19.3 cm )Source

Memory

1 item
Memory type, slots and limit
2 x DIMM slots, max. 64GB, DDR4 5100(OC)/ 4866(OC)/ 4666(OC)/ 4600(OC)/ 4466(OC)/ 4400(OC)/ 4333(OC)/ 4266(OC)/ 4200(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3733(OC)/ 3600(OC)/ 3466(OC)/ 3400(OC)/ 3333(OC)/ 3200/ 3000/ 2933/ 2800/ 2666/ 2400/ 2133, Un-buffered Memory* Dual channel memory architecture * ECC memory (ECC mode) support varies by CPU. * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/.Source

Expansion slots

1 item
Expansion slots and restrictions
AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series/ 3000 G-Series Desktop Processors 1 x PCIe 3.0 x16 slot (supports x16 mode) AMD A520 Chipset 1 x PCIe 3.0 x1 slot - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/ for the list of supported peripherals.Source

Storage

1 item
Storage interfaces and restrictions
Supports 1 x M.2 slot and 4 x SATA 6Gb/s ports* AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series/ 3000 G-Series Desktop Processors M.2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes) AMD A520 Chipset 4 x SATA 6Gb/s ports * AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10.Source

USB & rear connections

2 items
USB ports and headers
Rear USB (Total 6 ports) 4 x USB 5Gbps ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 6 ports) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 portsSource
Rear-panel ports
4 x USB 5Gbps ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x HDMI™ port 1 x Realtek 1Gb Ethernet port 3 x Audio jacks 1 x PS/2 keyboard (purple) port 1 x PS/2 mouse (green) portSource

Networking

1 item
Network interfaces and requirements
1 x Realtek 1Gb EthernetSource

Audio

1 item
Audio interfaces
Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.Source

Power, cooling & lighting

1 item
Internal headers and connectors
Fan and Cooling Related 1 x 4-pin CPU Fan header 1 x 4-pin Chassis Fan header Power Related 1 x 24-pin Main Power connector 1 x 4-pin +12V Power connector Storage Related 1 x M.2 slot (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin System Panel headerSource

BIOS, software & diagnostics

2 items
CPU support and BIOS requirements
AMD Socket AM4 for AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series/ 3000 G-Series Desktop Processors* * Refer to www.asus.com for CPU support list. BIOS: 128 Mb Flash ROM, UEFI AMI BIOS

Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor.

Source
Listed operating systems
Windows® 11, Windows® 10 64-bitSource
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