ASUS · Motherboard

ASUS PRIME B550M-K price in United Kingdom

MPN 90MB14V0-M0UAY0MPN 90MB140V0-30EAY0MPN 90MB14V0-M0EAY0EAN 4718017758291EAN 192876758281

Processor manufacturerAMD
Supported memory typesDDR4-SDRAM
Supported storage drive typesHDD & SSD
Parallel processing technology supportNot supported

Lowest price incl. delivery

£81.47

at PCHUB.UKFree deliveryIn stock

3 stores
Range £81.47 – £95.99
Save up to £14.52 vs. the dearest store
3 in stock
2 with free delivery
Checked 6 Oct 2026, 05:40 UTC

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Full specifications and side-by-side comparison

Prices in United Kingdom

3 stores · prices in GBP · updated 6 Oct 2026, 05:40 UTC

Lowest price£81.47at PCHUB.UK · free shippingGo to PCHUB.UK

Price range across 3 offers

Save up to £14.52 (15%) by choosing the cheapest store

3 of 3 stores in stock
2 with free shipping
Checked 6 Oct 2026, 05:40 UTC

PCHUB.UKLowest priceASUS PRIME B550M-K AMD B550 Socket AM4 micro ATX In stockFree shipping
£81.47incl. free shipping
Go to store : PCHUB.UK (opens in a new tab)
Back to the OfficeASUS PRIME B550M-K AMD B550 Socket AM4 micro ATX In stockFree shipping
£95.99incl. free shipping+£14.52 (18%) vs lowest
Go to store : Back to the Office (opens in a new tab)
PcNova.co.ukASUS PRIME B550M-K AMD B550 Socket AM4 micro ATX In stockShipping not stated
£81.47item price, shipping extra
Go to store : PcNova.co.uk (opens in a new tab)

Ad: we may earn a commission when you buy through these links; it never changes the order, which is by total price only. Prices and stock are shown as each store states them, as of 6 Oct 2026, 05:40 UTC, and can change at any time. Taxes are included only where the store includes them.

Price history in United Kingdom

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Best price · PCHUB.UK£81.47

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Product details

Identification

Brand: ASUS
Product: PRIME B550M-K
Full name: ASUS PRIME B550M-K AMD B550 Socket AM4 micro ATX
Manufacturer part number: 90MB14V0-M0UAY0, 90MB140V0-30EAY0, 90MB14V0-M0EAY0, 90MB14V0-M0AAY0
EAN / UPC: 4718017758291, 192876758281, 192876758298, 4718017758284
Category: Motherboard

73 specifications from the manufacturer's data sheet

Processor

Processor manufacturer	AMD
Processor socket	Socket AM4
Compatible processor series	AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series
Supported processor sockets	Socket AM4

Memory

Supported memory types	DDR4-SDRAM
Number of memory slots	4
Memory slots type	DIMM
Memory channels	Dual-channel
ECC сompatibility	ECC
Supported memory clock speeds	2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400 MHz
Supported memory clock speed (max)	4400 MHz
Maximum internal memory	128 GB
Unbuffered memory	Yes

Storage controllers

Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
Number of HDDs supported	4
Number of storage drives supported	6
RAID support	Yes
RAID levels	0, 1, 10

Graphics

Parallel processing technology support	Not supported

Internal I/O

USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
Number of SATA III connectors	4
S/PDIF out connector	Yes
Audio connector	Yes
Front panel audio connector	Yes
ATX Power connector (24-pin)	Yes
Number of EATX power connectors	1
CPU fan connector	Yes
Number of CPU fan connectors	1
Number of chassis fan connectors	2
EPS power connector (8-pin)	Yes
Number of EPS power connectors (8-pin)	1
12V power connector	Yes
Number of COM connectors	1
TPM connector	Yes

Rear panel I/O ports

USB 2.0 ports quantity	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0
Ethernet LAN (RJ-45) ports	1
PS/2 ports quantity	1
VGA (D-Sub) ports quantity	1
HDMI ports quantity	1
HDMI version	2.1
DVI-D ports quantity	1
Line-in	Yes
Microphone in	Yes

Network

Ethernet LAN	Yes
Ethernet interface type	Gigabit Ethernet
LAN controller	Realtek RTL8111H
Wi-Fi	No

Features

Component for	PC
Motherboard form factor	micro ATX
Motherboard chipset family	AMD
Motherboard chipset	AMD B550
Windows operating systems supported	Windows 10 x64

Expansion slots

PCI Express x1 (Gen 3.x) slots	2
PCI Express x16 (Gen 3.x) slots	1
PCI Express x16 (Gen 4.x) slots	1
Number of M.2 (M) slots	2
1st M.2 largest key size	2280
1st M.2 highest PCI Express generation	3.0
2nd M.2 largest key size	22110
2nd M.2 highest PCI Express generation	3.0