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Asus's $599 Surface-Like PC Detachable Runs on Arm

The ExpertBook B3 Detachable (B3000) features a Qualcomm Snapdragon 7c Gen 2 chip and boasts a battery life of up to 21 hours.

 & Michael Kan Principal Reporter

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Asus is going after Microsoft's Surface devices with a $599 laptop-tablet hybrid that runs on an Arm processor. 

Asus today launched the ExpertBook B3 Detachable for consumers looking for a portable and flexible device suited for today’s hybrid work environment. 

The product operates as a 10.5-inch tablet built with a kickstand that can also connect to an attachable keyboard. As a result, the ExpertBook B3 can function as a traditional laptop, or be used as a touch-screen tablet, which can be propped up on a table. 

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“Whether in the classroom, on the manufacturing line, or at the front of a small business, users can rely on the ExpertBook B3 Detachable as a laptop ready for anything,” the company says. 

However, the ExpertBook B3 doesn’t feature a traditional x86 chip from Intel or AMD. Instead, Asus opted to use an Arm-based processor in an 8-core Qualcomm Snapdragon 7c Gen 2 chip that has an up to 2.55GHz clock speed. This also means the product comes with the Arm-based Windows 11, which needs to rely on software emulation to run x86 64-bit apps. 

Asus image

But on the positive side, Asus’s product promises to offer up to 21 hours in battery life on a single charge. The ExpertBook B3 also weighs in at mere 1.3 pounds. Other perks include a stylus that can be “garaged” inside the tablet, and a fabric-woven covering on back of the tablet.

Asus adds: “The laptop is also optimized for video conferencing and collaboration, featuring a dual-camera design with a 5-megapixel user-viewing camera and a 13-megapixel world-facing camera, and innovative 3D noise-reduction (3DNR) technology which eliminates up to 94% of the random noise that naturally affects any camera.”

Interested consumers can check out the full specs on Asus’s website. The ExpertBook B3 Detachable is already on sale via Best Buy. The model available has 4GB of RAM and 128GB of internal storage. The company also plans on introducing a version with 8GB of RAM.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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