MotherboardDeals.co.uk

ASUS Prime B550M-K AMD B550 (Ryzen AM4), dual M.2, PCIe 4.0, DDR4 4400, 1 Gb Ethernet, HDMI/D-Sub/DVI, USB 3.2 Gen 2 Type-A, micro ATX

ASUS Prime B550M-K AMD B550
£85.22Was £88.99 4% less

RRP £134.99 · 37% under RRP

New, on Amazon.co.uk · as of

  • £80.44lowest we have recorded, 18 Sep 2026
  • £80.4430-day low
  • £80.4490-day low
  • £89.73typical price, last 90 days
  • 365 dayswe have checked this price for

Check price on Amazon

As an Amazon Associate we earn from qualifying purchases. The price on Amazon.co.uk when you buy is the one that applies.

Specification

Model90MB14V0-M0EAY0
BrandASUS
SocketAM4
ChipsetB550
Form factorMicro-ATX
MemoryDDR4
WiFiYes
First available on AmazonJan 2022 (4 yr 8 mo old)
Amazon ASINB089HF7ZRS
Amazon sales rank#1,413 (lower sells more)

Read from the Amazon listing title. Confirm the details and the CPU support list on the maker’s website before you buy.

Guides: AMD B550 chipset guide · AMD AM4 socket guide

Stated in the Amazon listing

Fastest RAM speed stated4,400 MT/s
M.2 slots2
Newest PCIe generation statedPCIe 4.0
WiFi generationWiFi 6
Wired LAN1GbE
Video outputsHDMI

Read automatically from the listing’s title and feature bullets. A feature that is missing here is simply not mentioned in the listing; the board may still have it.

Price history

£80£100£120£83.71 from 9 Sep 2026£85.31 from 9 Sep 2026£85.06 from 9 Sep 2026£85.31 from 9 Sep 2026£82.97 from 9 Sep 2026£83.71 from 9 Sep 2026£85.31 from 9 Sep 2026£83.71 from 9 Sep 2026£85.06 from 9 Sep 2026£84.56 from 9 Sep 2026£85.31 from 9 Sep 2026£85.47 from 9 Sep 2026£83.63 from 9 Sep 2026£84.56 from 10 Sep 2026£85.31 from 10 Sep 2026£83.81 from 10 Sep 2026£84.31 from 10 Sep 2026£82.97 from 10 Sep 2026£84.31 from 10 Sep 2026£84.56 from 10 Sep 2026£84.97 from 10 Sep 2026£84.31 from 10 Sep 2026£85.06 from 11 Sep 2026£85.31 from 11 Sep 2026£85.06 from 11 Sep 2026£85.31 from 11 Sep 2026£83.81 from 11 Sep 2026£85.31 from 11 Sep 2026£84.56 from 11 Sep 2026£83.71 from 11 Sep 2026£85.47 from 11 Sep 2026£85.88 from 11 Sep 2026£85.63 from 11 Sep 2026£85.88 from 11 Sep 2026£85.31 from 12 Sep 2026£85.06 from 12 Sep 2026£88.99 from 12 Sep 2026£95.09 from 12 Sep 2026£84.31 from 12 Sep 2026£86.22 from 12 Sep 2026£84.12 from 12 Sep 2026£86.32 from 12 Sep 2026£95.09 from 12 Sep 2026£87.44 from 12 Sep 2026£85.97 from 13 Sep 2026£85.06 from 13 Sep 2026£83.87 from 13 Sep 2026£85.06 from 13 Sep 2026£85.22 from 13 Sep 2026£84.37 from 13 Sep 2026£85.72 from 13 Sep 2026£85.47 from 13 Sep 2026£85.31 from 13 Sep 2026£95.09 from 13 Sep 2026£83.81 from 13 Sep 2026£85.31 from 14 Sep 2026£84.31 from 14 Sep 2026£85.06 from 14 Sep 2026£85.31 from 14 Sep 2026£84.56 from 14 Sep 2026£83.81 from 14 Sep 2026£84.56 from 14 Sep 2026£85.72 from 14 Sep 2026£85.47 from 14 Sep 2026£85.72 from 14 Sep 2026£95.09 from 14 Sep 2026£85.31 from 15 Sep 2026£84.56 from 15 Sep 2026£85.06 from 15 Sep 2026£84.56 from 15 Sep 2026£85.06 from 15 Sep 2026£85.31 from 15 Sep 2026£85.06 from 15 Sep 2026£85.72 from 15 Sep 2026£85.06 from 15 Sep 2026£82.97 from 16 Sep 2026£84.31 from 16 Sep 2026£85.06 from 16 Sep 2026£84.72 from 16 Sep 2026£85.22 from 16 Sep 2026£84.22 from 16 Sep 2026£114.28 from 16 Sep 2026£84.31 from 17 Sep 2026£83.81 from 17 Sep 2026£84.56 from 17 Sep 2026£83.81 from 17 Sep 2026£85.06 from 17 Sep 2026£84.31 from 17 Sep 2026£84.61 from 17 Sep 2026£84.56 from 17 Sep 2026£85.06 from 18 Sep 2026£84.56 from 18 Sep 2026£80.47 from 18 Sep 2026£85.06 from 18 Sep 2026£84.72 from 18 Sep 2026£84.67 from 18 Sep 2026£82.97 from 18 Sep 2026£80.97 from 18 Sep 2026£85.06 from 18 Sep 2026£81.44 from 18 Sep 2026£81.12 from 18 Sep 2026£80.44 from 18 Sep 2026£85.06 from 19 Sep 2026£83.56 from 19 Sep 2026£85.06 from 19 Sep 2026£84.56 from 19 Sep 2026£84.31 from 19 Sep 2026£85.97 from 19 Sep 2026£84.75 from 19 Sep 2026£84.81 from 19 Sep 2026£83.47 from 19 Sep 2026£84.37 from 19 Sep 2026£85.81 from 19 Sep 2026£85.97 from 19 Sep 2026£85.22 from 19 Sep 2026£84.47 from 20 Sep 2026£85.47 from 20 Sep 2026£85.97 from 20 Sep 2026£84.72 from 20 Sep 2026£85.22 from 20 Sep 202625 Sep 2025Mar 202620 Sep 2026
  • £80.44lowest we have seen
  • £117.04highest
  • £89.73usual price, last 90 days
  • 25 Sep 2025tracked since
Price changes as a table
FromNew price
20 Sep 2026, 02:41£85.22
20 Sep 2026, 02:38£84.72
20 Sep 2026, 01:17£85.97
20 Sep 2026, 00:20£85.47
20 Sep 2026, 00:04£84.47
19 Sep 2026, 23:46£85.22
19 Sep 2026, 23:14£85.97
19 Sep 2026, 23:01£85.81
19 Sep 2026, 21:37£84.37
19 Sep 2026, 17:52£83.47
19 Sep 2026, 17:14£84.81
19 Sep 2026, 13:50£84.75
19 Sep 2026, 11:14£85.97
19 Sep 2026, 10:05£84.31
19 Sep 2026, 09:06£84.56
19 Sep 2026, 07:15£85.06
19 Sep 2026, 04:41£83.56
19 Sep 2026, 01:00£85.06
18 Sep 2026, 23:57£80.44
18 Sep 2026, 22:38£81.12
18 Sep 2026, 22:37£81.44
18 Sep 2026, 21:12£85.06
18 Sep 2026, 19:59£80.97
18 Sep 2026, 18:37£82.97
18 Sep 2026, 18:20£84.67
18 Sep 2026, 17:11£84.72
18 Sep 2026, 11:11£85.06
18 Sep 2026, 09:58£80.47
18 Sep 2026, 07:32£84.56
18 Sep 2026, 00:36£85.06

Get an email when this board gets cheaper

Email me when the price drops

Give a target price, or leave it empty to hear about any drop of 5% or more from £85.22.

We will ask you to check the details, then send a confirmation email; the alert starts once you confirm it.

We store your email address, this alert, a scrambled (hashed) copy of your IP address and the times you signed up and confirmed. We use them only to send this alert. Every email has a one-click unsubscribe link and a link that deletes everything. Privacy policy.

Email me when Amazon Warehouse has this board

One email when a used or open-box offer from Amazon Warehouse appears for this board.

We will ask you to check the details, then send a confirmation email; the alert starts once you confirm it.

We store your email address, this alert, a scrambled (hashed) copy of your IP address and the times you signed up and confirmed. We use them only to send this alert. Every email has a one-click unsubscribe link and a link that deletes everything. Privacy policy.

Compare with…

The closest boards we track: same chipset and size, nearest price.

Similar boards

Boards similar to this one
BoardPriceSavingWarehouseBuy
MSI MPG B550 GAMING PLUS Motherboard ATXAM4 · B550 · ATX · DDR4 · first available Jun 2020 (6 yr 3 mo old) · RRP £109.992× M.2
£103.97as of 7% less£96.89Amazon
MSI B550-A PRO Motherboard ATX 90-day lowAM4 · B550 · ATX · DDR4 · first available Jun 2020 (6 yr 3 mo old) · RRP £104.99BIOS flashback
£89.99as of —5% under its 90-day usual—Amazon
MSI B550M PRO-VDH Motherboard M-ATXAM4 · B550 · Micro-ATX · DDR4 · first available Sep 2020 (6 yr old) · RRP £94.992× M.2
£79.99as of ——Amazon
MSI B550 GAMING WIFI MotherboardAM4 · B550 · ATX · DDR4 · WiFi · first available Dec 2025 (9 mo old) · RRP £119.99WiFi 5 · 2× M.2 · 4 RAM slots · USB-C 10Gbps
£109.99as of 14% less£94.99Amazon
MSI B550 GAMING WIFI6E MotherboardAM4 · B550 · ATX · DDR4 · WiFi · first available Sep 2026 (new this month) · RRP £124.99WiFi 6E · 2× M.2 · 4 RAM slots · USB-C 10Gbps
£139.00as of ——Amazon
MSI PRO B550M-P WIFI6E MotherboardAM4 · B550 · Micro-ATX · DDR4 · WiFi · first available Jun 2026 (2 mo old) · RRP £89.99WiFi 6E · 2× M.2 · 4 RAM slots
£127.14as of ——Amazon

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