Amazon has the SanDisk Ultra Fit 128GB USB 3.0 Low-Profile Flash Drive in black, model no. SDCZ430-256G-G46, for $11.79 (regularly $18.99) for a limited time.

This ultra-low-profile, high-performance drive fits snugly into your host devices and safely stays there-nothing to stick out or break off. Leave it in place as a stays-put storage boost. When it’s time to move your content it happens fast, up to ten times faster than a standard USB 3.1 drive. You can transfer a full-length movie in less than 40 seconds2. Play your music collection from your car audio system for that long road trip, or carry your family vacation photos with you. Not only does SanDisk Ultra Fit fit your on-the-go, multi-device lifestyle, it makes it safe to carry and share your content. The included SanDisk Secure Access software provides 128-bit file encryption and password protection for your private files while leaving the rest of the drive available for sharing.