Follow ZDNET: Add us as a preferred source on Google.
The SanDisk ExtremeFit USB-C flash drive (512GB) is on sale for $99 during Amazon’s last day of its Prime sale. That’s $20 off the regular price of $119, but this offer won’t last much longer.
The ExtremeFit lives up to its name as one of the smallest external storage devices I’ve ever seen — about the size of a mouse dongle. It comes in several storage configurations, from 128GB up to 1 TB. Luckily, the most practical size is the one that’s on sale: 512GB for $99, which is 17% off.
Also: Prime Day is ending: We hand-picked the 100+ best deals still live from Apple, Garmin, Bose, & more
I recently reviewed the ExtremeFit and found it to be about as plug-and-play as it gets. It doesn’t require any particular software or formatting, just insert it into your USB-C port for read speeds up to 400 MB/s.
To put the 512GB in perspective, that’s enough storage to equal a whole other laptop, with enough space for thousands of files, including large 4K video files, image files, and renders, and hundreds of hours of full-length movies.
I’d recommend the SanDisk ExtremeFit for creators, professionals, and anyone who needs external storage but doesn’t have a lot of room for bulky or expensive drives.
Also: I tested the world’s smallest 1TB SSD drive, and it’s biggest downside shouldn’t surprise you
Lastly, it’s compatible with PCs, Macs, Chromebooks, and iPads, so you can use it across any of your devices. Just keep in mind that the device is indeed very small and could be easily misplaced for some people. I recommend keeping it with your other designated tech items, or simply keep it plugged into your laptop’s USB-C port.
How I rated this deal
I gave this deal a 3/5 because it’s 17% off but still right at the $99 mark. If it were to dip below that amount, I would rate the deal higher.
Amazon’s Prime Day event launched Tuesday, June 23 and will stay live until Friday, June 26, 2026. The event was shifted up from it’s usual July timeframe.
Deals are subject to sell out or expire anytime, though ZDNET remains committed to finding, sharing, and updating the best product deals for you to score the best savings. Our team of experts regularly checks in on the deals we share to ensure they are still live and obtainable. We’re sorry if you’ve missed out on this deal, but don’t fret — we’re constantly finding new chances to save and sharing them with you at ZDNET.com.
We aim to deliver the most accurate advice to help you shop smarter. ZDNET offers 33 years of experience, 30 hands-on product reviewers, and 10,000 square feet of lab space to ensure we bring you the best of tech.
In 2025, we refined our approach to deals, developing a measurable system for sharing savings with readers like you. Our editor’s deal rating badges are affixed to most of our deal content, making it easy to interpret our expertise to help you make the best purchase decision.
At the core of this approach is a percentage-off-based system to classify savings offered on top-tech products, combined with a sliding-scale system based on our team members’ expertise and several factors like frequency, brand or product recognition, and more. The result? Hand-crafted deals chosen specifically for ZDNET readers like you, fully backed by our experts.
Also: How we rate deals at ZDNET in 2026
