Asustek computer PRIME A520M-K

The ASUS PRIME A520M-K is a Micro-ATX motherboard built around AMD's A520 chipset, designed for the AM4 socket. In plain terms, it's a budget foundation for Ryzen builds, the kind of board you pick when you want something competent and trustworthy without spending serious money on features you'll never use. At this price tier, it competes with similar offerings from Gigabyte and MSI, and it holds its own.

The short verdict: it's a solid, no-nonsense board for entry-level and mid-range Ryzen systems. ASUS's BIOS support is genuinely good, build quality is above what you'd expect at this price, and it handles Ryzen 5000 series chips with a BIOS update. The tradeoffs are real though: only two RAM slots, no CPU overclocking, and limited connectivity compared to B550 boards. Current pricing sits at £48.99, which is fair for what you get.

Where you'll feel the chipset's limits is if you start pushing things. The A520 doesn't allow CPU multiplier overclocking, full stop. That's a chipset-level restriction, not an ASUS decision, but it's worth being clear about. If you buy a Ryzen 5 5600X hoping to squeeze extra performance out of it, you're leaving headroom on the table. Stick to non-X chips or APUs and the limitation barely matters. The single M.2 slot is fine for most builds, though if you're planning a workstation with multiple NVMe drives, you'll want to look at a B550 board instead.

Connectivity is adequate rather than generous. Four rear USB 3.2 Gen 1 ports cover most peripherals, and the inclusion of both HDMI and VGA outputs is genuinely useful for older monitors. There's no USB-C on the rear panel, which is a minor annoyance in 2026, and onboard audio is functional but nothing special. For a budget build in a UK home or small office, none of that is a dealbreaker. It does what it says on the tin.

• You want to overclock your CPU or push RAM beyond DOCP profiles, as the A520 chipset simply won't allow it.
• You're planning a more capable build with a Ryzen 7 or Ryzen 9 processor, where a B550 board would be a far better match and worth the extra spend.
• You need more than two RAM slots or multiple M.2 drives for a workstation or content creation rig.

If you're putting together a sensible budget Ryzen build and don't need the extra headroom of a B550 board, this is a straightforward recommendation. It's honest about what it is: a dependable, no-frills foundation that won't let you down. Check the current price via £48.99 and compare it against the B550-P4 if you're on the fence, but for most entry-level builds, the A520M-K is the right call.