please take a look at the outer case and the USB connector of the nitrokeys. It should be small enough to comfortably fit a keychain, should have a metal ring to be attached to the keychain alongside with other conventional keys and have a durable outer case (metal - not plastic). Items for daily use are suffering from high mechanical stress. the nitrokey beta case was worn out after only some weeks.
please take a look at the outer case and the USB connector of the nitrokeys. It should be small enough to comfortably fit a keychain, should have a metal ring to be attached to the keychain alongside with other conventional keys and have a durable outer case (metal - not plastic). Items for daily use are suffering from high mechanical stress. the nitrokey beta case was worn out after only some weeks.