ASUS · Laptop

ASUS ExpertBook B5 B5404CM-Q6U731X Intel Core Ultra 7 155U Laptop price in United Kingdom

Model B5404CM-Q6U731XMPN 90NX06R1-M00K40EAN 197105603066EAN 4711387603062

Display35.6 cm (14")
Resolution1920 x 1200 pixels
ProcessorIntel Core Ultra 7
Memory32 GB

Lowest price incl. delivery

£1,400.99

at Back to the OfficeFree deliveryIn stock

1 store
1 in stock
1 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

1 store · prices in GBP · updated 6 Oct 2026, 05:40 UTC

Lowest price£1,400.99at Back to the Office · free shippingGo to Back to the Office

Price range across 1 offer

Every store asks the same price.

1 of 1 stores in stock
1 with free shipping
Checked 6 Oct 2026, 05:40 UTC

Back to the OfficeLowest priceASUS ExpertBook B5 14" Laptop (90NX06R1-M00K40) - Intel Core Ultra 7 155U, 32GB RAM, 1TB SSD, Windows 11 Pro In stockFree shipping
£1,400.99incl. free shipping
Go to store : Back to the Office (opens in a new tab)

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Product details

Identification

Brand: ASUS
Product: ExpertBook B5 B5404CM-Q6U731X Intel Core Ultra 7 155U Laptop
Full name: ASUS ExpertBook B5 B5404CM-Q6U731X Intel Core Ultra 7 155U Laptop 35.6 cm (14") Touchscreen WUXGA 32 GB DDR5-SDRAM 1 TB SSD Wi-Fi 6E (802.11ax) Windows 11 Pro B
Manufacturer part number: 90NX06R1-M00K40
EAN / UPC: 197105603066, 4711387603062
Category: Laptop

123 specifications from the manufacturer's data sheet

Design

Product type	Laptop
Product colour	Black
Colour name	Star Black
Form factor	Clamshell
Housing material	Aluminium, Magnesium
Market positioning	Work

Display

Display diagonal	35.6 cm (14")
Display resolution	1920 x 1200 pixels
Touchscreen	Yes
HD type	WUXGA
LED backlight	Yes
Native aspect ratio	16:10
Anti-glare screen	Yes
Display brightness	300 cd/m²
Colour gamut	45%
RGB colour space	NTSC
Maximum refresh rate	60 Hz
Contrast ratio (typical)	1000:1

Processor

Processor manufacturer	Intel
Processor family	Intel Core Ultra 7
Processor generation	Intel® Core™ Ultra (Series 1)
Processor model	155U
Processor cores	12
Processor threads	14
Processor boost frequency	4.8 GHz
Performance cores	2
Efficient cores	8
Low Power Efficient-cores	2
Performance-core Max Turbo Frequency	4.8 GHz
Efficient-core Max Turbo Frequency	3.8 GHz
Low Power Efficient-core Max Turbo Frequency	2.1 GHz
Performance-core base frequency	1.7 GHz
Efficient-core base frequency	1.2 GHz
Low Power Efficient-core Base Frequency	700 MHz
Processor cache	12 MB
Processor cache type	Smart Cache
Maximum turbo power	57 W
Processor base power	15 W

Neural processor unit (NPU)

Neural processor unit (NPU)	Intel AI Boost
Maximum frequency NPU	1.4 GHz
Sparsity support	Yes
Windows Studio effects support	Yes
AI software frameworks supported by NPU	DirectML, ONNX RT, OpenVINO, Windows ML

Memory

Internal memory	32 GB
Internal memory type	DDR5-SDRAM
Memory form factor	SO-DIMM
Memory slots	2x SO-DIMM
Maximum internal memory	64 GB

Storage

Total storage capacity	1 TB
Storage media	SSD
Total SSDs capacity	1 TB
Number of SSDs installed	1
SSD capacity	1 TB
NVMe	Yes
SSD interface	PCI Express 4.0
SSD form factor	M.2
Optical drive type	No

Graphics

On-board graphics card	Yes
Discrete graphics card	No
Discrete graphics card model	Not available
On-board GPU manufacturer	Intel
On-board graphics card family	Intel® Graphics
On-board graphics card model	Intel® Graphics

Audio

Audio system	Dolby Atmos
Built-in microphone	Yes

Camera

Front camera	Yes
Front camera HD type	Full HD
Front camera resolution	1920 x 1080 pixels
Infrared (IR) camera	Yes
Privacy camera	Yes
Privacy type	Privacy shutter

Network

Mobile network connection	No
Top Wi-Fi standard	Wi-Fi 6E (802.11ax)
Wi-Fi standards	Wi-Fi 6E (802.11ax)
Antenna type	2x2
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Bluetooth	Yes
Bluetooth version	5.3

Ports & interfaces

USB 2.0 ports quantity	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0
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
Ethernet LAN (RJ-45) ports	1
HDMI ports quantity	1
HDMI version	2.1
Thunderbolt 4 ports quantity	2
Intel® Thunderbolt 4	Yes
Combo headphone/mic port	Yes
USB Type-C DisplayPort Alternate Mode	Yes

Performance

Repairability index	8.4

Keyboard

Pointing device	Touchpad
Keyboard backlit	Yes
Numeric keypad	No

Software

Operating system installed	Windows 11 Pro
Operating system architecture	64-bit
Trial software	1-month trial for new Microsoft 365 customers. Credit card required.

Battery

Battery technology	Lithium-Ion (Li-Ion)
Number of battery cells	3
Battery capacity	63 Wh

Power

AC adapter power	65 W
AC adapter frequency	50 - 60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	3.25 A
AC adapter output voltage	20 V
USB Type-C charging port	Yes
USB Power Delivery (USB PD)	Yes

Security

Cable lock slot	Yes
Cable lock slot type	Kensington
Fingerprint reader	Yes
Smart card reader	Yes
Windows Hello	Yes
Trusted Platform Module (TPM)	Yes
Trusted Platform Module (TPM) version	2.0
Password protection	Yes
Password protection type	BIOS, User, HDD