ASUS ExpertBook B5 B5405CC-LYU715X 14" Core Ultra 7 255H 16GB 512GB SSD Laptop

A dependable business machine, the ASUS ExpertBook B5 B5405CC-LYU715X brings Core Ultra 7 255H, 16GB RAM and 512GB SSD to the daily commute and the desk alike.

Smart, secure AI power for business
ASUS ExpertBook B5 is a lightweight, AI-enhanced marvel that combines the latest Intel® Core™ Ultra processor and built-in Intel® Arc™ graphics1, ushering in a new era of productivity. It is your reliable business partner with superb on-the-go performance, enterprise-grade security and versatile customisation for strategic-thinking professionals — and infused with AI to make lighter work of the modern business world.

ASUS ExpertBook B5 also workforce computing deployments by seamlessly delivering customised solutions and supporting a variety of flexible configurations to meet specific needs, with options. This ultralight, premium design strikes the perfect balance of power and portability to precisely tackle intensive workflows and perfectly turbocharge productivity from the field to the boardroom.

Specifications

Design
Colour name	Gentle Grey
Product type	Laptop
Market positioning	Work
Housing material	Aluminium
Form factor	Clamshell
Product colour	Black
Introduction year	2025
Display
HD type	WUXGA
LED backlight	Yes
Display brightness	300 cd/m²
Contrast ratio (typical)	1000:1
Touchscreen	No
Display resolution	1920 x 1200 pixels
Display diagonal	35.6 cm (14")
Anti-glare screen	Yes
Maximum refresh rate	60 Hz
RGB colour space	NTSC
Colour gamut	45%
Native aspect ratio	16:10
Processor
Processor generation	Intel Core Ultra (Series 2)
Processor cache	24 MB
Processor model	255H
Processor boost frequency	5.1 GHz
Processor cores	16
Processor threads	16
Processor manufacturer	Intel
Processor family	Intel Core Ultra 7
Processor base power	28 W
Maximum turbo power	115 W
Efficient-core base frequency	1.5 GHz
Performance-core base frequency	2 GHz
Efficient-core Max Turbo Frequency	4.4 GHz
Performance-core Max Turbo Frequency	5.1 GHz
Performance cores	6
Efficient cores	8
Low Power Efficient-core Base Frequency	700 MHz
Low Power Efficient-core Max Turbo Frequency	2.5 GHz
Low Power Efficient-cores	2
Neural processor unit (NPU)
Neural processor unit (NPU)	Intel AI Boost
Sparsity support	Yes
Windows Studio effects support	Yes
AI software frameworks supported by NPU	DirectML, OpenVINO, Windows ML, ONNX RT, WebNN
Total processor performance up to	96 TOPs
NPU performance up to	13 TOPs
GPU performance up to	74 TOPs
Memory
Memory form factor	SO-DIMM
Internal memory	16 GB
Memory layout (slots x size)	1 x 16 GB
Internal memory type	DDR5-SDRAM
Memory slots	2x SO-DIMM
Storage
SSD form factor	M.2
Storage media	SSD
Optical drive type	No
Number of SSDs installed	1
SSD capacity	512 GB
SSD interface	PCI Express 4.0
Card reader integrated	Yes
Compatible memory cards	MicroSD (TransFlash)
Total storage capacity	512 GB
Total SSDs capacity	512 GB
NVMe	Yes
M.2 SSD size	2280 (22 x 80 mm)
Graphics
Discrete graphics card	No
On-board graphics card family	Intel Arc Graphics
On-board graphics card	Yes
On-board graphics card model	Intel Arc 140T
Discrete graphics card model	Not available
On-board GPU manufacturer	Intel
Audio
Audio system	Dirac
Camera
Front camera	Yes
Front camera resolution	1920 x 1080 pixels
Privacy camera	Yes
Privacy type	Privacy shutter
Front camera HD type	Full HD
Infrared (IR) camera	Yes
Windows Hello	Yes
Network
Mobile network connection	No
Top Wi-Fi standard	Wi-Fi 7 (802.11be)
Wi-Fi standards	Wi-Fi 7 (802.11be)
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Bluetooth	Yes
Bluetooth version	5.4
Antenna type	2x2
Ports & interfaces
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
USB Type-C DisplayPort Alternate Mode	Yes
USB 2.0 ports quantity	0
HDMI ports quantity	1
HDMI version	2.1
Ethernet LAN (RJ-45) ports	1
Combo headphone/mic port	Yes
USB Power Delivery (USB PD)	Yes
Thunderbolt 4 ports quantity	2
Intel® Thunderbolt 4	Yes
Performance
Repairability index	9.7
Keyboard
Pointing device	Touchpad
Numeric keypad	No
Keyboard backlit	Yes
Software
Operating system architecture	64-bit
Trial software	1-month trial for new Microsoft 365 customers
Operating system installed	Windows 11 Pro
Technical details
Sustainability certificates	ENERGY STAR, EPEAT Climate +, EPEAT Gold, Forest Stewardship Council (FSC) Recycled
Compliance certificates	REACH
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 Type-C required charging power (min)	55 W
USB Type-C required charging power (max)	65 W
Security
Password protection	Yes
Cable lock slot type	Kensington
Trusted Platform Module (TPM)	Yes
Password protection type	BIOS, HDD, User
Fingerprint reader	Yes
Face recognition	Yes
Cable lock slot	Yes
Smart card reader	Yes
Trusted Platform Module (TPM) version	2.0
Weight & dimensions
Width	315.1 mm
Depth	226.8 mm
Height (front)	1.75 cm
Height (rear)	1.79 cm
Weight	1.44 kg
Packaging data
AC adapter included	Yes

Downloads

• Datasheet (PDF)