SanDisk Extreme Fit: A 1TB USB-C Drive the Size of a Wireless Dongle

Darryl Lara Administrator

Darryl Lara is a portrait and concert photographer based in the Philippines. Since 2010, he has captured performances of some of the biggest local and international artists and built a strong presence in the concert scene. In 2022, he shifted to full-time writing and editing, where he now covers photography, technology, and gaming with the same passion for storytelling that defines his photography.

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By Darryl Lara

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Last updated 11/14/2025

SanDisk has introduced the Extreme Fit USB-C flash drive, a tiny, high-capacity “plug-and-stay” storage device designed to remain attached to a laptop or desktop without getting in the way. It is also the smallest portable drive the company has ever released.

A Shockingly Small Form Factor

The Extreme Fit is very small—almost unbelievably so. The drive measures only 18.5 × 13.7 × 16 millimeters and weighs a mere 3 grams, making it about the size of a wireless mouse dongle. Its compact size makes it highly portable and tempting to leave plugged in indefinitely.

However, long-term attachment does come with a warning. USB-C connectors are relatively fragile, and because the drive sticks out slightly, it could be bent or damaged if it catches on something inside a bag.

Storage Capacities and Compatibility

SanDisk offers the Extreme Fit in 64GB, 128GB, 256GB, 512GB, and 1TB capacities. The flash drive works with both macOS and Windows machines and is meant to serve as convenient, always-available on-device storage.

Performance Limitations

The tiny form factor comes with trade-offs. The Extreme Fit uses USB 3.2 Gen 1, which caps maximum transfer speeds at up to 400MB/s for all models except the 64GB version, which is even slower.

These speeds are adequate for general file storage, photo backups, and light video use, but the drive is not fast enough for editing high-resolution video footage directly from it.

Photographers and videographers who need real performance should consider more capable portable SSDs such as the OWC Express 1M2 80G Portable SSD or the LaCie Rugged SSD4, both of which offer vastly superior transfer speeds and durability. Still, if ultra-small size is the top priority, the Extreme Fit is tough to beat.

You can also explore our Buyer’s Guide to the Best External SSDs available today for a broader look at top options in the current market.

Pricing and Availability

The SanDisk Extreme Fit USB-C flash drive is available now. Pricing starts at $17.95 for the 64GB model, while the 1TB version retails for $134.95.