https://wccftech.com/the-ironkey-d300-series-achieves-nato-restricted-level-certification/

Kingston Digital Europe has announced that its IronKey D300 Encrypted USB Flash Drive series have achieved NATO Restricted Level Certification. The Kingston IronKey D300, IronKey D300S, and IronKey D300SM have been listed in the NATO Information Assurance Product Catalogue (NIAPC) for security products that meet NATO's nations, civil and military bodies' operational requirements.

The NIAPC is established under an INFOSEC Directive and ensures only cryptographic products that are developed in a NATO member nation, which has been approved to use with NATO Security Policies. The IronKey D300 series is now included on this list, which means it is qualified as an encrypted flash drive that meets the data protection levels. Sensitive data-in-transit needs to be protected as any loss or breach can result in harm to NATO's forces: its members or its mission.