ASUS Prime A320M-K DDR4 AMD Motherboard

The ASUS Prime A320M-K is a Micro-ATX motherboard built on the AMD A320 chipset, designed to pair with AMD AM4-socket processors including AMD Ryzen series, 7th Generation A-series, and Athlon processors. Its compact 8.9 x 8.7 inch (22.6 x 22.1 cm) mATX footprint makes it a practical choice for space-conscious builds without sacrificing essential connectivity or protection features. Memory support is handled through two DIMM slots capable of accommodating up to 32GB of unbuffered DDR4 RAM in dual-channel configuration. With AMD Ryzen processors installed, speeds up to DDR4 3200 MHz (O.C.) are supported, while 7th Generation A-series and Athlon processors top out at DDR4 2400 MHz. Storage options include four SATA 6Gb/s ports with RAID 0, 1, and 10 support, alongside a single M.2 Socket 3 (M key) slot accommodating 2242, 2260, and 2280 form-factor devices. When paired with a Ryzen processor, the M.2 slot runs in SATA or PCIe 3.0 x4 mode, enabling NVMe storage. Connectivity is handled by a Realtek RTL8111H Gigabit LAN controller and the rear I/O panel provides four USB 3.0 ports, two USB 2.0 ports, an HDMI 1.4b output, a D-Sub (VGA) port, PS/2 keyboard and mouse connectors, and three audio jacks. Audio is powered by a Realtek ALC887 8-channel HD audio CODEC with S/PDIF output available via an internal header. The board ships with ASUS 5X Protection III, a hardware-level protection suite that includes SafeSlot Core (reinforced PCIe slot), LANGuard (surge and lightning protection on the LAN port), Overvoltage Protection, Stainless-Steel Back I/O shielding, and DIGI+ VRM with a 6-phase digital power design. Fan management is handled by Fan Xpert, which supports 4-pin PWM and 3-pin DC modes for both the CPU and chassis fan headers. The UEFI BIOS is built on 128 Mb Flash ROM with AMI firmware, supporting EZ Flash 3, CrashFree BIOS 3, ACPI 6.1, SMBIOS 3.0, and multi-language operation. A BIOS update to version 5862 is required to support AMD 4000 G-series APUs and 5000-series CPUs; this updated BIOS does not support Bristol Ridge processors. Verified Specifications: - Chipset: AMD A320 - Socket: AMD AM4 - Form Factor: mATX, 226 x 221 mm - Memory: 2x DIMM, max 32GB DDR4 (up to 3200 MHz O.C. with Ryzen) - Storage: 4x SATA 6Gb/s (RAID 0/1/10), 1x M.2 (PCIe 3.0 x4 / SATA, 2242/2260/2280) - Expansion: 1x PCIe 3.0/2.0 x16, 2x PCIe 2.0 x1 - USB (rear): 4x USB 3.0, 2x USB 2.0 - Display: 1x HDMI 1.4b, 1x D-Sub - Audio: Realtek ALC887, 8-channel HD - LAN: Realtek RTL8111H, 1Gbps - BIOS: 128 Mb Flash ROM, UEFI AMI - OS Support: Windows 10 64-bit - Warranty: 3 Years