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Asus ExpertBook B9 B9400, i7-1255U


Asus ExpertBook B9 B9400, i7-1255U
Asus ExpertBook B9 B9400, i7-1255U (ExpertBook B9 Series)
Intel Core i7-1255U 10 x 1.2 - 4.7 GHz, Alder Lake-U
16 GB 
, DDR5 onboard
14.00 inch 16:9, 1920 x 1080 pixel 157 PPI, IPS, glossy: no, 60 Hz
1TB M.2 NVMe PCIe 4.0 SSD
1 USB 3.1 Gen2, 2 Thunderbolt, 1 HDMI, 1 Kensington Lock, Audio Connections: 3.5mm, 1 Fingerprint Reader
802.11 a/b/g/n/ac/ax (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/ax = Wi-Fi 6/), Bluetooth 5.2
height x width x depth (in mm): 14.9 x 320 x 203 ( = 0.59 x 12.6 x 7.99 in)
66 Wh Lithium-Ion, 4-cell
Operating System
Microsoft Windows 11 Home
Webcam: IR
Additional features
Speakers: Stereo, Keyboard: Chiclet, Keyboard Light: yes
1.01 kg ( = 35.63 oz / 2.23 pounds) ( = 0 oz / 0 pounds)
2000 Euro



Average Score: 79.25% - good
Average of 4 scores (from 5 reviews)
price: 70%, performance: 70%, features: - %, display: - % mobility: 90%, workmanship: 60%, ergonomy: - %, emissions: - %

Reviews for the Asus ExpertBook B9 B9400, i7-1255U

80% Asus ExpertBook B9450 review — Great business laptop for frequent travelers
Source: Laptop Mag English
The ExpertBook B9 doesn’t break the mold or excel beyond our wildest dreams, but it’s a reliable business laptop with long-lasting battery life, hyperfast SSD metrics and a phenomenal speaker system. It’s also bolstered by a tough build with hypnotic (yet minimalistic) aesthetic flairs alongside a solid display that goes above and beyond the average business laptop. But its performance was underwhelming, especially since it is one of the more expensive options among competitors yet fell behind in key categories, with its Handbrake metrics being the slowest even when pitted against laptops nearly $1,000 cheaper. If you don’t mind something larger and heavier, we highly recommend the Lenovo ThinkPad Z16, as it features superior performance and a better display at a lower cost. Otherwise, the ExpertBook B9 is great for those in need of a thin and light yet sturdy business laptop.
Single Review, online available, Medium, Date: 06/05/2023
Rating: Total score: 80%
90% ASUS ExpertBook B9 [B9450CBA] review
Source: Techradar English
The ASUS ExpertBook B9 is an impressive ultralight laptop with high-end specs, a great battery, and a fantastic array of ports that is an excellent choice for those working remotely or splitting their time between remote and in the office.
Single Review, online available, Long, Date: 04/11/2023
Rating: Total score: 90%
70% Asus ExpertBook B9 (450CBA-XVE75) Review
Source: PC Mag English
The Asus ExpertBook B9 is not without its charms. We like its thin and light yet durable magnesium alloy chassis and its impressive battery life. Portability, durability, and a long runtime should be high on anyone's list of priorities when shopping for a business laptop. However, the ExpertBook has relied on the same design for quite some time, and its 16:9 widescreen display and generic 720p webcam are definitely showing their age. Here's hoping Asus refreshes the system to restore it to the top ranks of business lightweights in 2024.
Single Review, online available, Very Long, Date: 03/23/2023
Rating: Total score: 70%
77% Asus Expertbook B9400 Review – Featherweight Champion
Source: Pokde English
The ASUS ExpertBook B9400 is an excellent enterprise laptop given its productivity potential, suite of security features, and extreme portability. Just keep in mind about the RAM before ordering one as you won’t be able to upgrade it later on.
Single Review, online available, Medium, Date: 11/30/2022
Rating: Total score: 77% price: 70% performance: 70% mobility: 90% workmanship: 60%

Foreign Reviews

Trên tay ASUS ExpertBook B9 2022: Thiết kế mỏng nhẹ, bền bỉ, Intel Core-i7 thế hệ 12 mạnh mẽ và giá 50.49 triệu*
Source: The Gioididong VN→EN
Positive: Slim size; light weight; powerful processor; high performance; great display.
Hands-On, online available, Medium, Date: 12/22/2022


Intel Iris Xe G7 96EUs: Integrated graphics card in Intel Tiger Lake G4 SoCs based on the new Gen. 12 architecture with 96 EUs (Execution Units / Shader Cluster). The clock rate depends on the processor model. The Tiger Lake chips are produced in the modern 10nm+ process at Intel.

Modern games should be playable with these graphics cards at low settings and resolutions. Casual gamers may be happy with these cards.

» Further information can be found in our Comparison of Mobile Graphics Cards and the corresponding Benchmark List.

i7-1255U: Alder Lake based mobile CPU with 2 performance cores and 8 efficient cores. The performance cores offer hyper threading, leading to 12 threads that can be processed. The CPU clocks from 1.2 to 4.7 GHz. The TDP is specified at 15 Watt.» Further information can be found in our Comparison of Mobile Processsors.


There are hardly any tablets in this display size range anymore. For subnotebooks, on the other hand, it is the standard format.

The advantage of subnotebooks is that the entire laptop can be small and therefore easily portable. The smaller display also has the advantage of requiring less power, which further improves battery life and thus mobility. The disadvantage is that reading texts is more strenuous on the eyes. High resolutions are more likely to be found in standard laptops.

» To find out how fine a display is, see our DPI List.

Asus: ASUSTeK Computer Inc. is a major Taiwanese computer hardware manufacturer based in Taipei, founded in 1989. Under the Asus brand name, the company manufactures a wide range of products, including laptops, desktops, motherboards, graphics cards, monitors, smartphones and networking equipment, complete systems and PC components for end users.

Under the ROG (Republic of Gamers) brand name, ASUS manufactures gaming laptops known by gamers for their powerful specifications, dedicated graphics cards, high refresh rate displays and advanced cooling systems.

Beyond gaming, a wide range of notebooks are offered for different needs and budgets, from ultra-slim and lightweight ultrabooks to versatile 2-in-1 convertibles and budget-friendly options. In 2023, Asus had a 7% global market share of the PC market.

Customer satisfaction with ASUS notebooks concerns performance, the features, and the good price-performance ratio of ASUS notebooks. However, as with any brand, there are occasional reports of problems such as overheating, driver compatibility, or build quality issues.

79.25%: This rating is not earth-shattering. This rating must actually be seen as average, since there are about as many devices with worse ratings as better ones. A purchase recommendation can only be seen with a lot of goodwill, unless it is about websites that generally rate strictly.

» Further information can be found in our Notebook Purchase Guide.


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Current Prices
Stefan Hinum, 2023-01-24 (Update: 2023-01-24)