A ton of experience. Overall, very positive. Using their latest hardware with the latest software packages (I use Github versions exclusively, except for the code released by Yubico itself) such as OpenSC, libp11, engine_pkcs11 - it does all I need, supporting OpenPGP and PIV. For the fun of it I'm planning on trying U2F in real applications, but that's in the future. Some of my colleagues use Yubikey Nano, exactly for the reason you mentioned - form factor. I used only Yubikey NEO and Yubikey 4. Sent from my iPad On Jan 18, 2016, at 12:13, Jorgensen, Will A <Will@pnnl.gov<mailto:Will@pnnl.gov>> wrote: I was looking for different small form factor smart cards (basically something that could be left in the USB port without fear of it being broken) and I came accross the YubiKey Nano. Has anyone had experience with this company or its products? Also, anyone have suggestions for other small form factor devices such as this? __________________________________________________ Will Jorgensen IT Engineer Finance and Project Management Communications & IT I want to hear your feedback _______________________________________________ SmartcardServices-Users mailing list SmartcardServices-Users@lists.macosforge.org<mailto:SmartcardServices-Users@lists.macosforge.org> https://lists.macosforge.org/mailman/listinfo/smartcardservices-users