Lexar Unveils the World’s Thinnest Portable SSD at 3.8 Millimeters

Lexar has introduced a portable SSD that looks more like an exceptionally thin metal card than a conventional external drive. The U.S. company presented the Muse at IFA 2026 and described it as the world’s thinnest portable SSD.

The drive measures just 3.8 millimeters at its thickest point. Its design gradually narrows to 1 millimeter at the edges, giving it a distinctly slim profile.

Lexar said the design became possible through the use of high-density NAND chips and a custom ultra-thin printed circuit board structure. The details were reported by 9to5Toys and reviewed by Al Arabiya Business.

Despite its small profile, the Muse is designed for fast transfers. Lexar says it can reach read speeds of up to 1,050 megabytes per second and write speeds of 1,000 megabytes per second, putting it in a range similar to many portable drives using the USB 3.2 Gen 2 standard. The drive can also handle professional video recording in the App format, although the supplied report ends before providing further details.