MotherboardDeals.co.uk

ASUS PRIME B650M-A II-CSM Micro-ATX commercial motherboard,DDR5 6400+(OC),PCIe 5.0 M.2 support,Realtek 2.5Gb LAN,DisplayPort,VGA,HDMI, USB 3.2 Gen 2 ports,front USB 3.2 Gen 1 Type-C, BIOS FlashBack

ASUS PRIME B650M-A II-CSM Micro-ATX commercial motherboard
£150.11

New, on Amazon.co.uk · as of

  • £119.56lowest we have recorded, 28 Oct 2026
  • £119.5630-day low
  • £119.5690-day low
  • £131.30typical price, last 90 days
  • 411 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

ModelPRIME B650M-A II-CSM
BrandASUS
SocketAM5
ChipsetB650
Form factorMicro-ATX
MemoryDDR5
WiFiNo
First available on AmazonJan 2023 (3 yr 9 mo old)
Amazon ASINB0BSP5ZLD9
Amazon sales rank#127,244 (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 B650 chipset guide · AMD AM5 socket guide

Stated in the Amazon listing

Fastest RAM speed stated6,400 MT/s
Newest PCIe generation statedPCIe 5.0
PCIe 5.0 M.2 slotYes
Wired LAN2.5GbE
Fastest USB-C port5 Gbps
BIOS flashbackYes
ARGB headersYes
Video outputsHDMI, DisplayPort

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.

From the Amazon listing

The seller’s own description, as shown on Amazon.co.uk. We have not checked these claims.

Price history

£100£200£300£400£500£190.10 from 21 Nov 2025£148.33 from 25 Nov 2025£165.92 from 28 Nov 2025£182.98 from 30 Nov 2025£178.70 from 5 Dec 2025£176.41 from 6 Dec 2025£163.80 from 16 Dec 2025£163.59 from 19 Dec 2025£171.98 from 22 Dec 2025£172.67 from 27 Dec 2025£170.70 from 30 Dec 2025£182.98 from 3 Jan 2026£182.98 from 6 Feb 2026£217.93 from 1 Apr 2026£182.98 from 4 Apr 2026£407.03 from 28 Jul 2026£406.93 from 30 Jul 2026£406.83 from 1 Aug 2026£406.73 from 7 Aug 2026£406.63 from 9 Aug 2026£406.53 from 12 Aug 2026£374.85 from 15 Aug 2026£359.52 from 18 Aug 2026£355.84 from 20 Aug 2026£355.74 from 23 Aug 2026£142.49 from 25 Aug 2026£138.00 from 26 Aug 2026£126.95 from 28 Aug 2026£131.30 from 1 Sep 2026£122.96 from 16 Sep 2026£138.00 from 18 Sep 2026£138.00 from 19 Sep 2026£125.52 from 3 Oct 2026£121.97 from 4 Oct 2026£121.99 from 10 Oct 2026£122.38 from 11 Oct 2026£121.02 from 13 Oct 2026£120.36 from 21 Oct 2026£119.56 from 28 Oct 2026£119.70 from 31 Oct 2026£121.04 from 31 Oct 2026£122.46 from 31 Oct 2026£150.11 from 4 Nov 202621 Nov 2025May 20265 Nov 2026
  • £119.56lowest we have seen
  • £407.03highest
  • £131.30usual price, last 90 days
  • 21 Nov 2025tracked since
Price changes as a table
FromNew price
4 Nov 2026, 12:21£150.11
31 Oct 2026, 18:21£122.46
31 Oct 2026, 12:21£121.04
31 Oct 2026, 00:21£119.70
28 Oct 2026, 06:21£119.56
21 Oct 2026, 06:21£120.36
13 Oct 2026, 18:21£121.02
11 Oct 2026, 12:21£122.38
10 Oct 2026, 06:21£121.99
4 Oct 2026, 18:21£121.97
3 Oct 2026, 00:21£125.52
19 Sep 2026, 23:04£138.00
18 Sep 2026, 20:34£138.00
16 Sep 2026, 07:16£122.96
1 Sep 2026, 19:50£131.30
28 Aug 2026, 06:02£126.95
26 Aug 2026, 13:20£138.00
25 Aug 2026, 08:17£142.49
23 Aug 2026, 11:57£355.74
20 Aug 2026, 16:17£355.84
18 Aug 2026, 02:05£359.52
15 Aug 2026, 05:51£374.85
12 Aug 2026, 14:58£406.53
9 Aug 2026, 21:45£406.63
7 Aug 2026, 01:27£406.73
1 Aug 2026, 13:22£406.83
30 Jul 2026, 02:16£406.93
28 Jul 2026, 09:56£407.03
16 May 2026, 21:00no offer
4 Apr 2026, 13:18£182.98

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 £150.11.

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
ASUS TUF GAMING B650M-PLUS AMD Ryzen AM5 Micro-ATX motherboardAM5 · B650 · Micro-ATX · DDR5 · first available Jan 2022 (4 yr 10 mo old) · RRP £219.032.5GbE · 3× M.2 · PCIe 5.0 · USB-C 5Gbps
£162.00as of ——Amazon
ASUS Prime B650-Plus AMD AM5 ATX MotherboardAM5 · B650 · ATX · DDR5 · first available Jan 2022 (4 yr 10 mo old) · RRP £204.292.5GbE · PCIe 5.0 · BIOS flashback · USB-C 10Gbps
£169.73as of —3% under its 90-day usual—Amazon
ASUS TUF GAMING B650-PLUS WIFI AMD Ryzen AM5 ATX motherboardAM5 · B650 · ATX · DDR5 · WiFi · first available Jan 2022 (4 yr 10 mo old) · RRP £259.85WiFi 6 · 2.5GbE · PCIe 5.0 · 4 RAM slots
£133.97as of 19% less£108.12Amazon
ASUS TUF GAMING B650M-E WIFI AMD B650 Socket AM5 micro ATXAM5 · B650 · Micro-ATX · DDR5 · WiFi · first available Jan 2024 (2 yr 10 mo old) · RRP £173.99
£162.99as of —18% under its 90-day usual—Amazon
ASUS ROG Strix B650-A Gaming WiFi AMD Ryzen AM5 ATX motherboard 90-day lowAM5 · B650 · ATX · DDR5 · WiFi · first available Jan 2022 (4 yr 10 mo old) · RRP £305.55WiFi 6E · 2.5GbE · 3× M.2 · PCIe 5.0 · USB-C 20Gbps
£157.97as of 18% less1% under its 90-day usual£130.08Amazon
Gigabyte B650 GAMING X AX V2 MotherboardAM5 · B650 · ATX · DDR5 · WiFi · first available Jan 2024 (2 yr 9 mo old) · RRP £299.00WiFi 6E · 2.5GbE · 2× M.2 · 4 RAM slots · BIOS flashback
£133.97as of ——Amazon

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