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Best-value Micro-ATX motherboards under £120 right now

The Micro-ATX motherboards under £120 in stock on Amazon.co.uk, best value first. This list is generated from price, popularity and the specifications each Amazon listing states, not from hands-on testing.

Micro-ATX is often the cheapest version of a given chipset, and at this budget it covers entry-level and mainstream boards for AM4, AM5 and LGA1700. Expect up to four expansion slots, two or four memory slots and one or two M.2 slots. The boards fit both Micro-ATX and ATX cases. The list mixes platforms, so check the socket before anything else.

262 boards in stock in this band, the top 20 shown · prices last checked 5 Nov 2026, 12:23 GMT

Micro-ATX motherboards under £120, best value first
BoardPriceSavingWarehouseBuy
#1 ASUS EX-B850M-V7 AMD Micro-ATX MotherboardAM5 · B850 · Micro-ATX · DDR5 · first available Mar 2026 (8 mo old) · RRP £200.995GbE · 2× M.2 · PCIe 5.0 · USB-C 10GbpsWhy it ranks here: in stock · Amazon sales rank #1,641 · 28% under its usual 90-day price · 5GbE LAN · 2 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · first available Mar 2026 (score 64.8 of 100)
£94.95as of —28% under its 90-day usual—Amazon
#2 ASROCK, Intel B860, LGA 1851 Lowest we've recordedLGA1851 · B860 · Micro-ATX · DDR5 · WiFi · first available Mar 2026 (8 mo old)WiFi 6E · 2.5GbE · 2× M.2 · PCIe 5.0 · 2 RAM slotsWhy it ranks here: in stock · Amazon sales rank #66,618 · 44% under its usual 90-day price · WiFi 6E · 2.5GbE LAN · 2 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · first available Mar 2026 (score 60.7 of 100)
£75.79as of —44% under its 90-day usual—Amazon
#3 ASRock Phantom Gaming B860M Lightning WiFi 6E Intel Core Ultra B860 LGA1851 DDR5 8933MHz… Lowest we've recordedLGA1851 · B860 · Micro-ATX · DDR5 · WiFi · first available Nov 2024 (1 yr 11 mo old) · RRP £240.93WiFi 6E · 4× M.2 · PCIe 5.0 · Thunderbolt 4 · 4× SATAWhy it ranks here: in stock · Amazon sales rank #70,530 · 45% under its usual 90-day price · WiFi 6E · 4 M.2 slots · PCIe 5.0 graphics slot · first available Nov 2024 (score 54.6 of 100)
£97.97as of —45% under its 90-day usual—Amazon
#4 ASUS PRIME B550M-K WIFI Lowest we've recordedAM4 · B550 · Micro-ATX · DDR4 · WiFi · first available Jun 2026 (5 mo old)WiFi 6Why it ranks here: in stock · Amazon sales rank #1,641 · 15% under its usual 90-day price · WiFi 6 · first available Jun 2026 (score 51.8 of 100)
£104.99as of —15% under its 90-day usual—Amazon
#5 ASUS 1700 B760M-AYW WIFI II M-ATX Lowest we've recordedLGA1700 · B760 · Micro-ATX · WiFi · first available Mar 2026 (8 mo old) · RRP £149.99WiFi 6 · 2.5GbE · 2× M.2Why it ranks here: in stock · 25% under its usual 90-day price · WiFi 6 · 2.5GbE LAN · 2 M.2 slots · first available Mar 2026 (score 51.0 of 100)
£97.42as of —25% under its 90-day usual—Amazon
#6 ASUS B860M AYW GAMING WIFI Lowest we've recordedLGA1851 · B860 · Micro-ATX · DDR5 · WiFi · first available Mar 2026 (8 mo old) · RRP £189.99WiFi 6 · 2.5GbE · 2× M.2 · USB-C 5GbpsWhy it ranks here: in stock · 34% under its usual 90-day price · WiFi 6 · 2.5GbE LAN · 2 M.2 slots · first available Mar 2026 (score 51.0 of 100)
£114.54as of —34% under its 90-day usual—Amazon
#7 ASUS Prime B850M-K AMD Micro-ATX Motherboard Lowest we've recordedAM5 · B850 · Micro-ATX · DDR5 · first available Mar 2025 (1 yr 7 mo old)2.5GbE · 2× M.2 · USB-C 5GbpsWhy it ranks here: in stock · Amazon sales rank #161,482 · 30% under its usual 90-day price · 2.5GbE LAN · 2 M.2 slots · first available Mar 2025 (score 43.5 of 100)
£72.17as of —30% under its 90-day usual—Amazon
#8 ASUS PRIME B760M-K Intel LGA 1700 mATX Motherboard Lowest we've recordedLGA1700 · B760 · Micro-ATX · DDR5 · first available Jun 2023 (3 yr 5 mo old) · RRP £110.992.5GbE · 2× M.2Why it ranks here: in stock · Amazon sales rank #26,537 · 29% under its usual 90-day price · 2.5GbE LAN · 2 M.2 slots · first available Jun 2023 (score 43.0 of 100)
£66.41as of —29% under its 90-day usual—Amazon
#9 ASRock B760M-X GEN5 Intel 1700 Socket Motherboard Micro-Atx 2X Ddr5 Slots 2X M.2 Lowest we've recordedLGA1700 · B760 · Micro-ATX · DDR5 · first available Mar 2026 (7 mo old) · RRP £173.992× M.2 · 2 RAM slotsWhy it ranks here: in stock · 57% under its usual 90-day price · 2 M.2 slots · first available Mar 2026 (score 42.0 of 100)
£37.90as of —57% under its 90-day usual—Amazon
#10 GIGABYTE B760M GAMING PLUS WIFI DDR4 MotherboardLGA1700 · B760 · Micro-ATX · DDR4 · WiFi · first available Nov 2024 (1 yr 11 mo old) · RRP £129.21WiFi 6 · 2× M.2 · 4 RAM slots · BIOS flashback · USB-C 5GbpsWhy it ranks here: in stock · Amazon sales rank #33,248 · 9% under its usual 90-day price · WiFi 6 · 2 M.2 slots · BIOS flashback · first available Nov 2024 (score 41.4 of 100)
£112.19as of —9% under its 90-day usual—Amazon
#11 MSI B840M GAMING PLUS WIFI6E MotherboardAM5 · B840 · Micro-ATX · DDR5 · WiFi · first available Jun 2025 (1 yr 4 mo old) · RRP £139.99WiFi 6E · 2.5GbE · 2× M.2 · 4 RAM slots · USB-C 10GbpsWhy it ranks here: in stock · Amazon sales rank #1,466 · WiFi 6E · 2.5GbE LAN · 2 M.2 slots · first available Jun 2025 (score 41.1 of 100)
£109.99as of ——Amazon
#12 ASUS Prime B850M-K Gaming Motherboard Socket AMD AM5AM5 · B850 · Micro-ATX · DDR5 · first available Apr 2025 (1 yr 6 mo old) · RRP £199.992.5GbE · 2× M.2 · PCIe 5.0 · BIOS flashback · USB-C 5GbpsWhy it ranks here: in stock · Amazon sales rank #9,632 · 2.5GbE LAN · 2 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Apr 2025 (score 40.5 of 100)
£109.99as of ——Amazon
#13 MSI PRO B550M-P WIFI6E Motherboard Lowest we've recordedAM4 · B550 · Micro-ATX · DDR4 · WiFi · first available Jun 2026 (4 mo old) · RRP £89.99WiFi 6E · 2× M.2 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #1,267 · WiFi 6E · 2 M.2 slots · first available Jun 2026 (score 40.4 of 100)
£89.99as of 8% less£82.72Amazon
#14 GIGABYTE B550M K WIFI6E MotherboardAM4 · B550 · Micro-ATX · DDR4 · WiFi · first available Apr 2026 (7 mo old) · RRP £86.99WiFi 6E · 2× M.2 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #23,848 · 7% under its usual 90-day price · WiFi 6E · 2 M.2 slots · first available Apr 2026 (score 40.2 of 100)
£93.35as of —7% under its 90-day usual—Amazon
#15 Gigabyte B550M DS3H Motherboard 90-day lowAM4 · B550 · Micro-ATX · DDR4 · first available Jan 2024 (2 yr 9 mo old) · RRP £99.992× M.2 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #42,455 · 44% under its usual 90-day price · 2 M.2 slots · first available Jan 2024 (score 39.8 of 100)
£70.63as of —44% under its 90-day usual—Amazon
#16 ASUS TUF Gaming A620AM-PLUS WiFi 90-day lowAM5 · A620 · Micro-ATX · DDR5 · WiFi · first available Jan 2024 (2 yr 10 mo old) · RRP £125.992.5GbEWhy it ranks here: in stock · Amazon sales rank #113,566 · 18% under its usual 90-day price · WiFi · 2.5GbE LAN · first available Jan 2024 (score 39.4 of 100)
£89.19as of —18% under its 90-day usual—Amazon
#17 GIGABYTE B760M GAMING X WIFI6E GEN5 MotherboardLGA1700 · B760 · Micro-ATX · DDR5 · WiFi · first available Jul 2025 (1 yr 3 mo old) · RRP £139.99WiFi 6E · 2.5GbE · 2× M.2 · PCIe 5.0 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #54,500 · 3% under its usual 90-day price · WiFi 6E · 2.5GbE LAN · 2 M.2 slots · PCIe 5.0 graphics slot · first available Jul 2025 (score 38.2 of 100)
£115.94as of —3% under its 90-day usual—Amazon
#18 ASUS PRO A520M-C II/CSM Mainboard Socket AM4AM4 · A520 · Micro-ATX · DDR4 · first available Jan 2024 (2 yr 10 mo old) · RRP £73.992.5GbEWhy it ranks here: in stock · 22% under its usual 90-day price · 2.5GbE LAN · first available Jan 2024 (score 38.0 of 100)
£79.40as of —22% under its 90-day usual—Amazon
#19 Asrock B850M-X R2.0 Amd B850 Am5 Micro Atx 2 Ddr5 Hdmi Dp 2.5G Lan 2X M.2 30-day lowAM5 · B850 · Micro-ATX · DDR5 · WiFi · first available Jun 2025 (1 yr 4 mo old) · RRP £243.99WiFi 6E · 2.5GbE · 2× M.2 · PCIe 5.0 · 2 RAM slotsWhy it ranks here: in stock · Amazon sales rank #58,430 · WiFi 6E · 2.5GbE LAN · 2 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · first available Jun 2025 (score 38.0 of 100)
£104.94as of ——Amazon
#20 ASUS PRIME B840M-A WIFI AMD B840 mATX motherboardAM5 · B840 · Micro-ATX · DDR5 · WiFi · first available Jan 2025 (1 yr 9 mo old) · RRP £193.79WiFi 6E · 2.5GbE · 3× M.2 · BIOS flashback · USB-C 5GbpsWhy it ranks here: in stock · Amazon sales rank #64,057 · WiFi 6E · 2.5GbE LAN · 3 M.2 slots · BIOS flashback · first available Jan 2025 (score 37.8 of 100)
£110.99as of ——Amazon

Tick two to four boards, then compare them side by side.

How this list is made

Nobody at motherboarddeals.co.uk has tested these boards. The list is generated from the data we hold: the price on Amazon.co.uk, how well the board sells, and the specifications its Amazon listing states. A board has to be in stock and under the budget to appear. It then scores points for being in stock (10), for its Amazon sales rank (up to 30, on a sliding scale), for selling below its own usual price of the last 90 days (one point per percent, up to 20, once we hold two weeks of its price history), for the features its listing states (up to 30: WiFi generation, 2.5 GbE or faster networking, the number of M.2 slots, PCIe 5.0 and a BIOS flashback button) and for how recently it was first available (up to 10). The line under each board names the factors that counted for it. A feature the listing does not state scores nothing, so a good board with a thin listing can rank lower than it deserves, and CPU and board bundles are left out. The order is recalculated whenever prices are checked, roughly every six hours; nobody can pay to move up it. How we track motherboard prices explains where the numbers come from.

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