ExpertBook B9 B9400

The master of lightness and power
The world’s lightest 14” business laptop1
Thin & light
Lighter, stronger, and more portable
Get the job done, effortlessly
Windows 10 Pro
Intel® Core CPU
Iris® Xe
Up to
LDDR4x 4266 MHz
Up to
Lasts longer, charges faster
Up to
li-polymer battery
fast charging in 39 minutes6
I/O Ports
Comprehensive connectivity with no compromise
RJ45 via micro HDMI
USB 3.2 Gen 2
Thunderbolt 4 USB-C®
Thunderbolt 4 USB-C®Thunderbolt 4 USB-C®HDMIRJ45 via micro HDMIUSB 3.2 Gen 2Kensington lock slot
Military grade
Military-grade toughness and build quality
Hinge TestSubjects the laptop to up to 50,000 open-and-closed cycles
Port Durability TestPhysical durability is tested with 5,000 insertion-and-removal cycles.
Panel Pressure TestLaptop must endure 30 kg force on lid and bottom without LCD panel damage
Keyboard Durability TestDesigned for a lifespan of up to 10-million keystrokes
Shock TestWithstand six harsh shocks in each direction at the speed of 150 G / 2.5 ms
Drop Test120 cm drop while powered on to mimic desk accident
Vibration TestWithstands 5-500 Hz physical vibrations in all directions for one hour
Humidity TestSurvives 85% humidity, 40°C conditions for 24 hours whether turned on or off
Altitude TestOperate as normal at 15,000 feet to simulate an aircraft cargo hold and in-flight operation
Temperature TestEndure 50°C, 0°C with power on for 20 hours
Extreme Quality TestExpertBook B9
Noise Cancelation
Next-level AI noise-canceling audio technology
Press play to experience noise-canceling technology
AI noise cancelation
Immersive audio
360° far-field microphones
All-Round Microphone
Immersive Audio
Get to work faster with AdaptiveLock
proximity sensor
IR camera
User Experience
Ultimate input experience
  • NumberPad
  • Backlit keyboard
  • Spill-resistant keyboard
  • ErgoLift hinge
  • Function keys
ASUS NumberPad10 is an LED-illuminated numeric keypad that’s perfect for crunching numbers. Tap the NumberPad icon on the top right of the touchpad to turn it on, and tap the icon on the left to toggle between two brightness settings. Clever software lets you control the cursor, even when NumberPad is activated.
The backlit keyboard lets you type effortlessly in dark environments, from twilight café tables to aircraft cabins.
Accidents happen, and ExpertBook B9 is ready for them: its spill-resistant keyboard can cope with up to 66 cc of liquids without harm, so minor spillages can be easily drained, cleaned and dried.
B9 is engineered to make the typing experience more comfortable and more accurate. With ErgoLift hinge, the keyboard automatically tilts to the most comfortable typing positions. It also has widely spaced, long-travel keys that give out responsive tactile feedback for more accurate typing.
For added convenience, you can capture screen grabs, activate the webcam, or access the MyASUS app via function keys — instantly.
Unrivaled visuals
thin bezel
screen-to-body ratio11
Virtual Assistant
Alexa with built-in light bar
Schedule a Team Meeting.
Seamless PC-to-phone integration
Watch Link to MyASUS Quick introduction video
  • Files
  • URL
  • Phone
  • Remote File
  • Screen
  • Screen
To send a file you've just captured from your phone to your PC, simply tap to share it instantly. You can also transfer files from your PC to your mobile device in the blink of an eye.
Simply tap the share icon in your browser and click MyASUS. The link of the webpage you are watching on your PC will be instantly sent to your mobile device — where it will open automatically for seamless on-the-go convenience.17
If you need to call someone while working on your PC, you can seamlessly make or receive phone calls — via your PC. There’s no need to dig out your phone from your bag or pocket!
If you’re working away from the office, you can easily access your work files remotely from your mobile device — anytime, anywhere, and with no hassle.
It’s annoying when you have to pick up your phone to check notifications or reply to messages while you’re using your PC. But with the Mirror function, you can do everything on your phone from the comfort of your PC!
If you prefer a dual-display setup, the convenient Screen Extender feature turns your mobile device into an extension to your PC’s screen. You can drag images, videos or documents onto your phone for easier cross-referencing.
Enterprise-grade security
Webcam Shield
Simply slide over to stop webcam being used
IR Camera
Enjoy biometric login with just a glance — even in the dark
Trusted Platform Module (TPM)
Stores passwords and encryption keys for added security14
Fingerprint Sensor
One-touch access to login your PC
Kensington Lock Slot
Prevent physical theft of the PC from unsupervised locations
USB Port Control
Device lock controls read/write access to USB storage devices
Simplifying business processes
ASUS Control Center
A centralized IT management software suite that’s capable of remote management with web-based interface
ASUS Business Manager
A set of program utilities for performing maintenance and optimation tasks to personal PC
The renowned ASUS UEFI BIOS features user-friendly interfaces and exclusive mouse control, enabling easier management of individual PCs
Caring for the environment
Maximum support, minimal effort
Comprehensive 24x7 Support
Hassle-free access to hardware and software experts15
Lets you reach customer service, repair status, product guides and so on.
Pick Up & Return/Onsite Service
Enjoy a door-to-door service for effortless maintenance15
Warranty Extension
Extend service coverage to match the expected length16
Accidental Damage Protection
Avoid repair costs due to mishaps during normal operation15,16
Defective HDD Retention
Retain customers’ malfunctioning hard drive while their drive is replaced15,16
  • As of Aug. 1, 2020. Based on internal ASUS market analysis comparing the size of ExpertBook B9 to competitor products from vendors including Acer, HP, Huawei, Lenovo, Microsoft and Samsung. Actual weight may vary by specs.
  • Weight may vary according to configuration.
  • Unless otherwise stated, materials claims are based on theoretical performance. Actual figures may vary in real-world situations.
  • Unless otherwise stated, all performance claims are based on theoretical performance. Actual figures may vary in real-world situations.
  • All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
  • Recharges the battery up to 60% within 39 minutes when the system is off or in standby mode. Power adapter with a minimum capacity of 66 watts is required. After charging has reached 60% capacity, charging will return to normal. Charging time may vary +/- 10% due to System tolerance.
  • RAID 0 test configuration: Intel® Core i7- 1165G7, 16GB RAM, FHD display, 1TB PCIe® 3.0 x4 SSD, 66Whr.
  • WiFi 6 is backwards compatible with prior 802.11 specs. Unless otherwise stated, all performance claims are based on theoretical performance, and the actual performance of WiFi 6 may vary in real-world situations.
  • WiFi Master test configuration: under controlled test conditions, streaming Full HD YouTube videos, and AP set with one antenna at 802.11g. Actual WiFi range and performance may be affected by environmental factors. Interference from USB 3 devices may vary according to the device. Range comparisons refer to standard laptop with all-metal chassis design.
  • Please note that all versions of NumberPad work only with the Microsoft Windows operating system.
  • The stated width of the side bezel is the distance between the edge of the non-active screen display area and the inside edge of the case. If the case width is included, the side bezel width is 4 mm. The stated width of the bottom bezel is the distance between the edge of the non-active screen display area and the visible edge of the display when the laptop is opened to 90°. Measured based on standard (not anti-glare) display configuration.
  • Amazon Alexa availability varies according to country. Please check with your local ASUS retailer for details.
  • Link to MyASUS is a function in the latest version of MyASUS software. If the device doesn’t have Link to MyASUS. Please update MyASUS in the system setting.
  • Trusted Platform Module (TPM) optional.
  • Service and warranty coverage may vary depending on country and territory. Service may not be available in all markets. We recommend that you check with your local retailers to confirm the options available.
  • Must be purchased and activated within 90 days of your ASUS product purchase date via ASUS Premium Care.
  • The Link to MyASUS Mirror and Screen Extender function work on Android version 8.0 or above. iOS is not supported.
  • The testing data includes the requirements of both military-grade standards and ASUS quality tests.
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