ASUS Prime A520M-A DDR4 AMD Motherboard

The ASUS Prime A520M-A is a Micro-ATX (mATX) motherboard built on the AMD A520 chipset and designed around the AMD AM4 socket. It targets daily PC builders and home-office users who want a dependable, no-nonsense foundation for a 3rd Gen AMD Ryzen or 3rd Gen AMD Ryzen with Radeon Graphics processor, without sacrificing build quality or feature depth. Memory flexibility is a standout characteristic: four DIMM slots accommodate up to 128 GB of unbuffered DDR4 memory in a Dual Channel configuration, with native speeds from DDR4-2133 up to DDR4-3200, and overclocked profiles reaching DDR4-4800 (subject to processor support). ECC memory operation is also supported where the installed CPU allows it. For storage, a single M.2 Socket 3 slot (M Key, sizes 2242 through 22110) supports both PCIe 3.0 x4 and SATA modes, delivering up to 32 Gbps sequential bandwidth — ideal for an NVMe OS drive. Four SATA 6 Gb/s ports provide additional drive capacity, and the AMD A520 chipset enables RAID 0, 1, and 10 configurations across those SATA devices. Connectivity is well-rounded. The rear I/O panel provides four USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, three audio jacks, DVI-D, D-Sub, HDMI, a Gigabit Ethernet port (Realtek RTL8111H with ASUS LANGuard surge protection), and a PS/2 combo port. Internal headers expand USB availability by a further two USB 3.2 Gen 1 and four USB 2.0 ports. Onboard audio is handled by the Realtek ALC887 codec, delivering 7.1-channel surround sound at up to 24-bit/192 kHz playback, supported by dedicated audio PCB layers, audio shielding, and premium Japanese audio capacitors. ASUS 5X Protection III is integrated across the board, encompassing Overvoltage Protection, DRAM Overcurrent Protection, LANGuard, SafeSlot Core (stainless-steel-reinforced PCIe x16 slot), and a stainless-steel back I/O panel. The aluminium heatsink thermal solution and hybrid fan headers, controlled through Fan Xpert software, help maintain stable temperatures during sustained workloads. BIOS management is handled by a 256 Mb Flash ROM running UEFI AMI BIOS, with ASUS EZ Mode for quick setup, Advanced Mode for fine-tuning, CrashFree BIOS 3 for safe recovery, and EZ Flash 3 for firmware updates. Armoury Crate software provides centralised RGB lighting control for compatible peripherals. The EPU energy-processing unit can automatically reduce power draw during light loads. Key Verified Specifications: - Form Factor: mATX, 24.4 cm x 24.4 cm (9.6 in x 9.6 in) - Socket: AMD AM4 | Chipset: AMD A520 - Compatible CPUs: 3rd Gen AMD Ryzen / 3rd Gen AMD Ryzen with Radeon Graphics - Memory: 4 x DIMM, max 128 GB, DDR4-2133 to DDR4-3200 (native); up to DDR4-4800 O.C. - Storage: 1 x M.2 (PCIe 3.0 x4 / SATA, up to 22110) + 4 x SATA 6 Gb/s (RAID 0/1/10) - Expansion: 1 x PCIe 3.0 x16, 2 x PCIe 3.0 x1 - Rear USB: 4 x USB 3.2 Gen 1 Type-A, 2 x USB 2.0 - Display outputs: 1 x HDMI, 1 x DVI-D, 1 x D-Sub - LAN: Realtek RTL8111H 1 GbE - Audio: Realtek ALC887, 7.1-channel, up to 24-bit/192 kHz - BIOS: 256 Mb Flash ROM, UEFI AMI BIOS - Warranty: 3 Years