ASUS ExpertBook B9 OLED B9403CVA-KM0229X
PRODUCT DESCRIPTION
ASUS ExpertBook B9 OLED B9403CVA-KM0229X (90NX05W1-M008T0) - 3 Years Onsite Warranty
Under 1 kg, with a 2.8K OLED Display
The ASUS ExpertBook B9403CVA-KM0229X is ASUS's flagship-tier ultra-light business laptop — a 14-inch OLED machine built from magnesium-lithium alloy that weighs from just 0.99 kg, aimed at executives and consultants who carry a laptop between meetings and flights all day and value weight and screen quality as much as raw speed. It runs an Intel Core i7-1355U processor with 16 GB of soldered LPDDR5X memory and a 512 GB NVMe SSD, on Windows 11 Pro.
This is the flagship of the ExpertBook range in our catalogue — lighter and more expensive than the B1402CVA and B5402CVA families, trading upgradeable memory and some port variety for weight, display quality and chassis material.
14-Inch 2.8K OLED — Not the 4K Panel Some Listings Claim
The display is a 14-inch OLED panel at WQXGA+ resolution, 2880 x 1800 in a 16:10 aspect ratio — commonly described as "2.8K" — with 400 nits brightness, 100% DCI-P3 colour coverage and Pantone validation, achieving a 90% screen-to-body ratio. This is genuinely excellent for a business laptop: deep OLED blacks, wide colour and enough resolution for detailed spreadsheet and document work in the 16:10 ratio's extra vertical space. Note that it is a 2880 x 1800 panel, not a 3840 x 2160 4K panel — some marketplace listings describe it loosely as "4K OLED", but the resolution ASUS publishes for this chassis is WQXGA+.
Intel Core i7-1355U in a Magnesium-Lithium Chassis
The Core i7-1355U runs at 1.8 GHz base, turbos to 5.1 GHz, with 10 cores (2P+8E) and 12 MB cache, paired with integrated Intel Iris Xe Graphics. What makes the B9403 series distinct is the chassis: a magnesium-lithium alloy build that is both lighter and stiffer than the aluminium or magnesium-aluminium used on most business laptops, which is how ASUS gets the total weight under 1 kg while still passing MIL-STD 810H durability testing.
16 GB LPDDR5X, Soldered, with a 512 GB NVMe SSD
Memory is 16 GB of LPDDR5X, soldered to the board — this is standard practice on ultra-light chassis designs across the industry, trading upgradeability for the power efficiency and physical space savings that LPDDR5X in a soldered package allows. Storage is a 512 GB M.2 2280 NVMe PCIe 4.0 SSD in the chassis's single drive slot. Order the memory capacity you expect to need, since it cannot be increased later; for more local storage without stepping up memory, the identically specified B9403CVA-KM0064X in our catalogue carries the same processor and memory with 1 TB of storage instead.
Twin Thunderbolt 4, Ethernet via Bundled Adapter
Ports are deliberately minimal to keep the chassis this thin and light: two Thunderbolt 4 ports (USB4-compliant, display and power delivery capable), one USB 3.2 Gen 2 Type-A port, a full-size HDMI 2.1 output, and a micro HDMI-style port that becomes a Gigabit Ethernet connection via the RJ45 dongle ASUS includes in the box — there is no built-in Ethernet jack on this chassis, unlike the B1402CVA and B5402CVA ranges. Wireless covers Wi-Fi 6E, triple band, with Bluetooth 5.4.
Supplied Locally, with GST Invoice and Singapore Onsite Warranty
SourceIT supplies the ASUS ExpertBook B9403CVA-KM0229X with a full GST invoice and local Singapore support. ASUS backs this model with a 3-year international warranty including local onsite service in Singapore.
Deciding between the 512 GB build here and the 1 TB B9403CVA-KM0064X, or against the heavier but expandable B5402CVA-KI0026X in our catalogue? Email sales@sourceit.com.sg with your travel and storage needs and we will help you choose.
ASUS B9403CVA-KM0229X Datasheet — Technical Specifications
General
| ASUS Product Name | ASUS ExpertBook B9 OLED B9403CVA-KM0229X |
| Part Number (PN) | B9403CVA-KM0229X |
| Internal Item Code | 90NX05W1-M008T0 |
| Range | ASUS ExpertBook B9-series OLED, B9403 chassis, 13th Gen Intel |
| Form Factor | 14-inch ultra-light business laptop |
| Operating System | Windows 11 Pro (preinstalled) |
| Manufacturer Warranty | 3-Year International Warranty with Local Onsite Service (ASUS) |
| Local Warranty (Singapore) | Included with every unit supplied by SourceIT, together with a GST invoice |
Display
| Screen Size | 14.0-inch, 16:10 |
| Resolution | WQXGA+, 2880 x 1800 ("2.8K") |
| Panel Type | OLED, glossy finish |
| Brightness | 400 nits |
| Colour Gamut | 100% DCI-P3, Pantone Validated |
| Screen-to-Body Ratio | 90% |
| Touch | Not touch-enabled |
Processor & Graphics
| Processor | Intel Core i7-1355U, 1.8 GHz base, up to 5.1 GHz, 12 MB cache, 10 cores (2P+8E), 12 threads |
| Graphics | Intel Iris Xe Graphics (integrated, dual-channel memory support) |
Memory & Storage
| Memory Installed | 16 GB LPDDR5X, onboard, soldered |
| Memory Upgradeable | No — order the capacity you need |
| Primary Storage | 512 GB M.2 2280 NVMe PCIe 4.0 SSD |
| Storage Slots | Single M.2 2280 PCIe 4.0x4 slot; optional TCG Opal 2.0 self-encrypting drive available per configuration |
Keyboard & Trackpad
| Keyboard | Backlit chiclet keyboard, 1.5 mm key travel, spill-resistant, with NumberPad support |
| Trackpad | Precision clickpad, doubles as a numeric keypad via NumberPad |
Ports & Connectivity
| Thunderbolt / USB-C | 2 x Thunderbolt 4, USB4-compliant, display output and power delivery |
| USB-A | 1 x USB 3.2 Gen 2 Type-A |
| Video Output | 1 x HDMI 2.1 |
| Wired LAN | Via bundled micro HDMI-to-RJ45 dongle — no built-in Ethernet jack |
| Audio | 1 x 3.5 mm combo audio jack |
| Wireless LAN | Wi-Fi 6E (802.11ax), triple band, 2x2 |
| Bluetooth | Bluetooth 5.4 |
| Webcam | 1080p FHD camera with IR function for Windows Hello, physical privacy shutter |
Battery & Power
| Battery | 63 WHrs, 3-cell lithium-ion |
| Power Adapter | 65 W USB Type-C adapter, 20 V / 3.25 A |
Physical & Build
| Dimensions (W x D x H) | 31.10 x 21.50 x 1.57–1.69 cm |
| Net Weight | From 0.99 kg |
| Chassis Material | Magnesium-lithium alloy |
| Durability | US MIL-STD 810H military-grade testing |
| Colour | Star Black |
Security
| TPM | TPM 2.0, discrete |
| Biometric | Fingerprint sensor; IR camera for Windows Hello face login |
| Webcam Privacy | Physical camera shutter |
| Physical Lock | Kensington Nano Security Slot (6 x 2.5 mm) |
| Anti-Theft | Absolute Persistence 2.0 firmware support |
| Audio | Built-in array microphone, built-in speaker with Dolby Atmos, Smart Amp Technology |
| Package Contents | Laptop, 65 W USB-C power adapter, USB-C power cable, micro HDMI-to-RJ45 adapter, user documentation, warranty card |
Connectivity & Setup / Security Features
Docking, Displays and the Missing Ethernet Jack
Both USB-C ports are full Thunderbolt 4, so a single-cable Thunderbolt or USB4 dock handles external displays, wired Ethernet, USB peripherals and charging together — the most practical way to use this laptop at a permanent desk. There is no built-in RJ45 Ethernet jack on this chassis; ASUS includes a micro HDMI-to-RJ45 dongle in the box for a direct wired connection when a dock is not available, and it is worth confirming this adapter is present before deploying the unit, since it is easy to misplace.
Networking
Wi-Fi 6E triple-band support reaches the less congested 6 GHz band where local access point infrastructure supports it, alongside 2.4 GHz and 5 GHz, plus Bluetooth 5.4 for peripherals.
Windows Hello and TPM-Backed Encryption
The 1080p IR webcam supports Windows Hello face login, and a separate fingerprint sensor gives a second biometric option. TPM 2.0 stores BitLocker keys in hardware, meeting the security baseline most Singapore corporate IT policies require. Absolute Persistence 2.0 firmware support allows asset-tracking and remote-wipe software to survive an OS reinstall or drive replacement, which matters for a laptop this portable and therefore more exposed to loss or theft.
Why There Is No Memory or Second Storage Slot
To achieve a sub-1 kg weight in a 14-inch chassis, ASUS solders the LPDDR5X memory to the board and fits a single M.2 storage slot rather than the dual slots found on the heavier B5402CVA. This is the direct trade-off for the weight and thinness — if upgradeable memory or dual storage matters more to your use case than weight, the B5402CVA-KI0026X in our catalogue is the better fit.
Package Contents & Ordering Information
In the Box
ASUS ExpertBook B9403CVA-KM0229X laptop, 65 W USB-C power adapter, USB-C power cable, micro HDMI-to-RJ45 Ethernet adapter, user documentation, warranty card. No mouse is included as standard.
Related ExpertBook Models in Our Catalogue
SourceIT carries several other ExpertBook configurations alongside this one. All are current commercial ASUS ExpertBook laptops for the Singapore market — email sales@sourceit.com.sg quoting the part number to check stock and lead time.
| B9403CVA-KM0229X (this listing) | Intel Core i7-1355U | 16GB LPDDR5X / 512GB SSD | 14" 2.8K OLED, under 1 kg |
| B9403CVA-KM0064X | Intel Core i7-1355U | 16GB LPDDR5 / 1TB SSD | 14" 2.8K OLED, under 1 kg |
| B5402CVA-KI0026X | Intel Core i7-1360P vPro | 8GB DDR5 / 1TB SSD | 14" FHD, vPro, Thunderbolt 4 |
| B1402CVA-EB0123X | Intel Core i7-1355U | 16GB DDR4 / 512GB SSD | 14" FHD, entry business |
| B1402CVA-EB0124X | Intel Core i5-1335U | 16GB DDR4 / 512GB SSD | 14" FHD, entry business |
| B1402CVA-EB0125X | Intel Core i7-1355U | 16GB DDR4 / 1TB SSD | 14" FHD, entry business |
| B1502CVA-BQ0124X | Intel Core i7-1355U | 16GB DDR4 / 512GB SSD | 15.6" FHD, entry business |
Choosing Between the Two B9403CVA OLED Configurations
This KM0229X and the KM0064X share the same Core i7-1355U processor and 16 GB memory. This listing carries 512 GB of storage; the KM0064X carries 1 TB. Choose 1 TB if you keep large local files without relying on cloud storage; otherwise 512 GB is ample for document-based business use.
Datasheet & Downloads
ASUS hosts the official product and specification pages for this model family. The links below are ASUS's current pages for the B9403 13th Gen Intel chassis.
| ASUS product page | ASUS ExpertBook B9 OLED (B9403) — Overview |
| ASUS specifications page | ASUS ExpertBook B9 OLED (B9403) — Full Specifications |
For the PDF datasheet, user manual or driver downloads specific to the B9403CVA-KM0229X configuration, email sales@sourceit.com.sg quoting B9403CVA-KM0229X (internal code 90NX05W1-M008T0) and we will send you the current files directly.
Frequently Asked Questions — ASUS B9403CVA-KM0229X
Is the display really 4K?
No. It is a 14-inch OLED panel at WQXGA+ resolution, 2880 x 1800 in a 16:10 ratio, commonly called "2.8K" — not 3840 x 2160 4K. This is the resolution ASUS publishes for the B9403 OLED chassis.
Why is there no Ethernet port?
To keep the chassis under 1 kg and this thin, ASUS omits a built-in RJ45 jack on the B9403. A micro HDMI-to-RJ45 dongle is included in the box for a wired connection, or use a Thunderbolt dock.
Can the memory be upgraded?
No. The 16 GB of LPDDR5X memory is soldered to the board to achieve the sub-1 kg weight, and is not user-upgradeable. Order the capacity you expect to need.
What is the difference between this and the B9403CVA-KM0064X?
Both run the same Core i7-1355U processor and 16 GB of memory. This KM0229X carries 512 GB of storage; the KM0064X carries 1 TB.
How does this compare with the B5402CVA in your catalogue?
The B9403 OLED is lighter, has a sharper OLED display and a magnesium-lithium chassis, but trades away upgradeable memory, dual storage slots and a built-in Ethernet port. The B5402CVA is heavier but offers expandable memory, dual M.2 storage and vPro manageability. Choose based on whether portability or expandability matters more for the role.
Does it support Windows Hello?
Yes, via both the 1080p IR webcam for face login and a separate fingerprint sensor.
What durability testing has it passed?
ASUS tests the B9403 chassis to the US MIL-STD 810H military standard for shock, vibration, temperature, humidity and altitude, despite the lightweight magnesium-lithium construction.
Is the storage drive replaceable later?
The chassis has a single M.2 2280 PCIe 4.0 slot, and the drive can be replaced by a qualified technician, though there is no second slot to add storage alongside the existing drive.
Does it come with a Singapore warranty and a GST invoice?
Yes. Every ASUS ExpertBook B9403CVA-KM0229X sold by SourceIT comes with local Singapore support and a GST invoice; ASUS backs this model with a 3-year international warranty including local onsite service.
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