The GIGABYTE A520I AC is a compact Mini-ITX motherboard built around the AMD A520 chipset and AM4 socket. Designed for space-conscious desktop systems, it supports compatible AMD Ryzen processors, dual-channel DDR4 memory, NVMe storage, and integrated wireless networking.
AMD AM4 Processor Support
The motherboard supports compatible AMD Ryzen 5000 Series, Ryzen 5000 G-Series, Ryzen 4000 G-Series, Ryzen 3000 Series, and Ryzen 3000 G-Series processors. Its Direct 6-phase digital VRM design uses 55A DrMOS components to provide CPU power delivery.
DDR4 Memory and Storage
Two DDR4 DIMM slots support up to 64GB of system memory in a dual-channel configuration. The board supports standard DDR4 memory speeds up to 3200 MT/s, with higher speeds available through supported overclocking profiles and compatible components.
For storage, the A520I AC includes one M.2 connector supporting compatible SATA and PCIe 3.0 x4/x2 SSDs, along with four SATA 6Gb/s connectors. RAID 0, RAID 1, and RAID 10 are supported through the SATA storage interface.
Wireless and Wired Networking
Integrated dual-band 802.11ac Wi-Fi provides wireless connectivity over 2.4GHz and 5GHz bands. Bluetooth 4.2 supports compatible wireless peripherals. A Realtek Gigabit Ethernet controller provides wired network connectivity, with bandwidth management features for network traffic control.
Expansion and Display Connectivity
The motherboard features one PCIe 3.0 x16 expansion slot for a compatible graphics card. Its rear display connections include one DisplayPort and two HDMI ports. Display output through these connectors requires a compatible processor with integrated AMD Radeon graphics.
Cooling, Lighting and BIOS Features
GIGABYTE Smart Fan 5 provides multiple temperature sensors and fan-control features, including Fan Stop support. RGB Fusion 2.0 includes an addressable LED header and an RGB LED header for compatible lighting components. Q-Flash Plus allows BIOS updates without installing the CPU, memory, or graphics card.
Key Features
- AMD A520 chipset with AM4 socket and support for compatible Ryzen processors.
- Mini-ITX form factor measuring 17 x 17 cm.
- Two DDR4 DIMM slots supporting up to 64GB of dual-channel memory.
- One M.2 connector and four SATA 6Gb/s storage connectors.
- Integrated dual-band Wi-Fi, Bluetooth 4.2, and Gigabit Ethernet.
Suitable Applications
- Compact desktop and Mini-ITX PC builds.
- Home and office computing systems using compatible AMD Ryzen processors.
- Small-form-factor multimedia and entertainment PCs.
- Compact systems requiring integrated wireless networking and NVMe storage.
DC Supplies Product Note
The A520I AC is a Mini-ITX motherboard, so check that the selected case supports the 170 x 170 mm form factor. Also verify the exact CPU model against GIGABYTE's processor support list and required BIOS version before installation. Integrated Wi-Fi module specifications can vary by motherboard PCB revision.
Technical Specifications
| Brand | GIGABYTE |
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| Model | A520I AC |
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| Product Type | Desktop Motherboard |
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| Chipset | AMD A520 |
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| CPU Socket | AMD AM4 |
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| Supported Processors | Compatible AMD Ryzen 5000, 5000 G-Series, 4000 G-Series, 3000, and 3000 G-Series processors |
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| Memory Type | DDR4 |
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| Memory Slots | 2 x DDR4 DIMM |
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| Maximum Memory | 64GB |
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| Memory Architecture | Dual Channel |
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| Memory Speed | Up to DDR4 3200 MT/s standard; higher supported speeds through overclocking |
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| ECC Support | ECC Unbuffered DIMM support; ECC operation depends on the processor |
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| Expansion Slot | 1 x PCIe 3.0 x16 |
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| M.2 Storage | 1 x M.2 Socket 3, M Key, 2260/2280; SATA and PCIe 3.0 x4/x2 SSD support |
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| SATA Connectors | 4 x SATA 6Gb/s |
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| RAID Support | RAID 0, RAID 1, RAID 10 |
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| Wireless Networking | Dual-band 802.11a/b/g/n/ac Wi-Fi, 2.4GHz and 5GHz |
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| Bluetooth | Bluetooth 4.2 |
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| Wired Networking | Realtek Gigabit Ethernet (10/100/1000 Mbit) |
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| Display Outputs | 1 x DisplayPort, 2 x HDMI |
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| Rear USB | 4 x USB 3.2 Gen 1, 2 x USB 2.0/1.1 |
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| Audio | Realtek Audio Codec, High Definition Audio, 2/4/5.1/7.1-channel support |
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| Power Connectors | 1 x 24-pin ATX, 1 x 8-pin ATX 12V |
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| Fan Headers | 1 x CPU fan header, 2 x system fan headers |
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| Lighting Support | 1 x Addressable LED header, 1 x RGB LED header |
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| BIOS Update Feature | Q-Flash Plus |
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| Form Factor | Mini-ITX |
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| Dimensions | 17 x 17 cm |
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Frequently Asked Questions
Which processors are compatible with the GIGABYTE A520I AC?
It supports selected AMD Ryzen 5000, 5000 G-Series, 4000 G-Series, 3000, and 3000 G-Series processors. Check the official CPU support list for the exact processor and BIOS requirements.
How much RAM can the motherboard support?
The motherboard has two DDR4 memory slots and supports up to 64GB of system memory in dual-channel mode.
Does the A520I AC support NVMe SSDs?
Yes. Its M.2 connector supports compatible PCIe 3.0 x4/x2 SSDs as well as SATA M.2 drives.
Does this motherboard have built-in Wi-Fi?
Yes. It includes dual-band 802.11ac Wi-Fi and Bluetooth 4.2. The specific wireless module can vary by PCB revision.
Can this motherboard fit in a Mini-ITX case?
Yes. Its 17 x 17 cm Mini-ITX form factor is designed for compatible Mini-ITX cases.
Can the HDMI and DisplayPort connectors be used with any Ryzen processor?
No. Display output requires a compatible AMD Ryzen processor with integrated Radeon graphics. A separate graphics card is required when using a processor without integrated graphics.
