I got it from kernelconcepts as tokenizerrr said. They seem to have a newer vers...

		mike-cardwell on Dec 27, 2015 \| parent \| context \| favorite \| on: Yubico with new 4096-bit keys and gpg-agent for ss... I got it from kernelconcepts as tokenizerrr said. They seem to have a newer version of the card now which does 4096, so I might have to buy another. Mine only does 2048