The ASUS Prime A520M‑K is an entry‑level micro‑ATX motherboard designed for AMD AM4 socket Ryzen processors, built on the A520 chipset:

• Supports 3rd, 4th, and 5th-generation Ryzen CPUs without the need for BIOS FlashBack, offering broad compatibility out of the box. 

• Equipped with 2× DDR4 DIMM slots, supporting up to 64 GB memory and speeds up to ~4600 MHz (OC) depending on installed CPU. 

• Expansion includes 1× PCIe 3.0 x16 slot (no PCIe 4.0 support on A520 platforms) and 2× PCIe 3.0 x1 slots for expansion cards. 

• Storage interfaces comprise 1× M.2 socket (PCIe 3.0 x4 or SATA) and 4× SATA III ports, supporting RAID 0/1/10. 

• Rear I/O includes HDMI 2.1 (4K/60 Hz), D‑Sub, PS/2 combo port, Gigabit LAN (Realtek RTL8111H with ASUS LANGuard), and USB 3.2 Gen 1 (Type‑A) plus USB 2.0 ports. 

• Board-level features: M.2 heatsink (on some SKUs), Fan Xpert hybrid fan headers, PCH heatsink, Armoury Crate / AI Suite software, and 5X Protection III (SafeSlot Core, overvoltage, ESD, etc.). 

• Audio: Realtek ALC887/897 HD audio with shielding and high-quality capacitors.