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Green Mini ITX motherboard with AM4 socket, two DDR4 slots, vertical M.2 WiFi module, PCIe x16 slot, four SATA ports, M.2 heatsink

ASRock

ASRock A520M-ITX/AC Mini ITX AM4 AMD motherboard

SKU CH-TYJB-PXTDB

Mini ITX AM4 board with dual-channel DDR4 to 64GB, PCIe 3.0 x16, Ultra M.2 Gen3 x4, four SATA3, Realtek 1GbE and bundled Intel 802.11ac WiFi

  • ProcessorSupports 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors
  • ChipsetAMD A520
  • Form factorMini ITX
  • CPU socketAM4
  • Memory slot count2 × 288pin (DDR4)
  • Supported memoryAMD Ryzen series CPUs (Matisse) support DDR4 4600+(OC)/ 4533
  • Compact Mini-ITX board fits small-form-factor builds
  • Supports 3rd Gen Ryzen 3000 and 4000 series processors on AM4 socket
  • Dual-channel DDR4 up to 64GB with overclocked speeds to 4600+(OC)
  • Ultra M.2 Gen3 x4 (32Gb/s) plus four SATA3 6.0Gb/s ports with RAID 0/1/10
  • Built-in Intel 802.11ac dual-band Wi-Fi up to 433Mbps and Realtek 1Gbps LAN

AM4 Mini-ITX board for Ryzen 3000/4000 builds

The ASRock A520M-ITX/AC fits the AM4 socket and targets compact systems using 3rd-gen Ryzen 3000 or 4000 series CPUs. It excludes the Ryzen 5 3400G and Ryzen 3 3200G. The A520 chipset provides a compact foundation with integrated 802.11ac Wi-Fi and Bluetooth on the rear I/O.

Verify CPU cooler clearance

The board carries two 288-pin DDR4 slots supporting dual-channel up to 64 GB. Matisse CPUs run DDR4 at speeds from 2133 to 4600+(OC); Renoir APUs reach 4733+(OC). Check your cooler dimensions against the socket keep-out zone and ensure DIMM height clears the cooler in a Mini-ITX chassis.

VRM and chipset thermals stay stable in a tight case

The single PCIe 3.0 x16 slot and one Ultra M.2 2280 socket (PCIe Gen3 x4 or SATA) share the A520 chipset thermal budget. Under sustained load the compact VRM and passive chipset heatsink rely on case airflow. Four SATA3 6.0 Gb/s ports with RAID 0/1/10 and a Realtek 1 Gbps LAN complete the I/O.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $97.99
Cheaper than about 77% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASRock
Product lineA520M-ITX/AC
Processor
ProcessorSupports 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors (3000 and 4000 Series Processors)*
* Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G.
CPU socketAM4
ChipsetAMD A520
Memory
Memory slot count2 × 288pin (DDR4)
Supported memoryAMD Ryzen series CPUs (Matisse) support DDR4 4600+(OC)/ 4533(OC)/ 4466(OC)/ 4400(OC)/ 4333(OC)/ 4333(OC)/ 4266(OC)/ 4200(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3800(OC)/ 3733(OC)/ 3600(OC)/ 3466(OC)/ 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
AMD Ryzen series APUs (Renoir) support DDR4 4733+(OC)/ 4666(OC)/ 4600(OC)/ 4533(OC)/ 4466(OC)/ 4400(OC)/ 4333(OC)/ 4266(OC)/ 4200(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3800(OC)/ 3733(OC)/ 3600(OC)/ 3466(OC)/ 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
* Please refer to Memory Support List on ASRock's website for
Max supported RAM64 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA3 6.0Gb/s Connectors, support RAID, NCQ, AHCI and Hot Plug
M.2 slots1 x Ultra M.2 Socket (M2_1), supports M Key type 2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s)*
* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit
SATA and RAID support0/1/10
Audio & video
Audio chipRealtek ALC887
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek RTL8111H
Maximum network speed1 Gbit/s
Wi-Fi standardIntel 802.11ac WiFi Module
Supports IEEE 802.11a/b/g/n/ac
Supports Dual-Band (2.4/5 GHz)
Supports high speed wireless connections up to 433 Mbit/s
Bluetooth supportSupports Bluetooth 4.2+ High speed class II
Ports & slots
Additional slots1 x Vertical M.2 Socket (Key E) with the bundled WiFi-802.11ac module (on the rear I/O)
Rear panel ports2 x Antenna Ports
1 x PS/2 Mouse/Keyboard Port
1 x HDMI Port
1 x DisplayPort 1.4
2 x USB 2.0 Ports (Supports ESD Protection)
3 x USB 3.2 Gen1 Type-A Ports (Supports ESD Protection)
1 x USB 3.2 Gen1 Type-C Port (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB headers1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
Power
Power connectors1 × 24-pin ATX Power Connector
1 × 8-Pin 12 V Power Connector
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
Compatibility
Windows 11 supportSupported
In the box
In the boxAccessories:
- Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
- 2 x ASRock WiFi 2.4/5 GHz Antennas
More details
LightingRGB

Questions about this item

What comes in the box with the ASRock A520M-ITX/AC and what must I buy separately?

The board includes a pre-installed Intel 802.11ac WiFi module in the vertical M.2 Key E socket. You must buy a compatible AM4 Ryzen 3000 or 4000 series CPU, DDR4 memory, storage and a power supply separately.

Which memory speed should I choose for the A520M-ITX/AC with a Ryzen 3000 CPU?

Ryzen 3000 Matisse CPUs support DDR4 up to 4600+(OC) with official JEDEC speeds at 3200, 2933, 2667, 2400 and 2133 MHz. Pick a kit on the ASRock memory support list that matches your CPU and desired overclock headroom.

What does the 32Gb/s Ultra M.2 rating mean for real SSD performance?

The Ultra M.2 slot runs at PCIe 3.0 x4, giving a theoretical 32Gb/s ceiling. An NVMe drive will hit its rated sequential speeds up to that limit; SATA M.2 drives are capped at 6.0Gb/s instead.

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