Motherboards under $100

4 motherboards under $100 from ASRock, MSI, Shangzhaoyuan and more. Prices run $67 to $99.

ASUS

AM4, mATX, AMD A520

+Built-in 802.11ac Wi-Fi for wireless networking

+Compact microATX form factor

+AM4 socket supports 3rd Gen Ryzen processors

−A520 chipset has fewer features than B-series boards

$99.99

as of 11/04/2026 12:10 PST - Details

MSI

AM4, mATX, DDR4, AMD A520

+AM4 socket supports Ryzen 5000 series processors

+Compact micro-ATX form factor

+Includes M.2 slot for NVMe storage

−Uses older DDR4 memory rather than DDR5

−Only the basic A520 chipset, with limited overclocking support

$69.88

as of 11/04/2026 00:18 PST - Details

GIGABYTESpec score 8.0

AM4, mATX, DDR4, 2 Memory slots

+Uses AM4 socket for AMD Ryzen processors

+Includes NVMe PCIe 3.0 x4 M.2 slot

+Includes Gigabit LAN

−Only two RAM slots limit total memory expansion

$79.99

as of 11/03/2026 23:11 PST - Details

GIGABYTE

AM4, mATX, DDR4, 2 Memory slots

+Uses AM4 socket for AMD Ryzen processors

+Supports DDR4 memory

+Includes HDMI and D-Sub video outputs

−Only two RAM slots limit total memory expansion

−Lacks M.2 slot listed on the product

$67.00

as of 11/03/2026 23:11 PST - Details

Compare specs

Socket	Form factor	Chipset	Spec score	Price
AM4	mATX	AMD A520	n/a	$99.99 as of 11/04/2026 12:10 PST - Details
AM4	mATX	AMD A520	n/a	$69.88 as of 11/04/2026 00:18 PST - Details
AM4	mATX	AMD A520	8.0	$79.99 as of 11/03/2026 23:11 PST - Details
AM4	mATX	AMD A520	n/a	$67.00 as of 11/03/2026 23:11 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.