Ovrdrive does not encrypt its contents by default but has a uniquely physical security mechanism and can be rigged to self-destruct - by heating itself to over 100 degrees C [tomshardware.com]:
Through GitHub [github.com] and Crowd Supply, Ryan Walker of Interrupt Labs (via CNX Software [cnx-software.com]) is releasing a security [tomshardware.com]-focused, open-source USB flash drive called Ovrdrive USB, which boasts a self-destruct mechanism that heats the flash chip to over 100 degrees Celsius.
The Ovrdrive USB is unencrypted by default, so it should still be legal in countries where encryption is otherwise illegal while providing an extra degree of (physical) security not matched by our current best flash drives [tomshardware.com].
[...] In its crowdfunding campaign on Crowd Supply [crowdsupply.com], the flash drive is slated for an August 2024 release and priced at $69 with free US domestic shipping or $12 international shipping for the rest of the world. At the original time of writing, the flash drive has reached 70% of its funding, with two days remaining on the funding deadline.
Related: Report Reveals Decline In Quality Of USB Sticks And MicroSD Cards [soylentnews.org]