There are already quite a few ways to interact with Windows Hello in Windows 10, but a new third-party accessory shown off by Microsoft is pretty unique. Called Token, the accessory is a biometric ring that can be used for Windows Hello authentication, as well as a number of other applications, on your PC.

Token, the company says, stores you credentials via a secure element within the ring. Before you put it on, you "unlock" the ring with a fingerprint sensor located on its interior. From there, you can use Token to log in to your PC with a knock (yes, a knock) via Windows Hello. Token can also be used to log into websites, make payments with Visa and Mastercard, unlock doors, and much more.

It's definitely a neat idea for something that simply lives on your finger and looks like any other accessory, particularly with all of its potential applications. Unfortunately, that will come at a cost: Token will run $249 when it ships in December in seven sizes and three finishes. You can head to Token's website to learn more and place a preorder.