BUYER BEWARE. I received the OP404 which does not have the USB socket.
Please reach out to Woot! Customer Service. Allow 24-48h for a response.
From a browser: http://account.woot.com/support
In the Woot! App, choose Account from the bottom navigation and then Support.
(Please Note: I’m not employed by Woot, but I volunteer to help in the forums.)