Your Keycard can hold a name. This is particularly helpful if you own a number of Keycards. Your Shell shows the name of the Keycard inserted on the top line of its screen. Software wallets integrating with Keycard can also use this information to facilitate how users recognize their Keycards.
By default the name of a Keycard is 'Keycard', but you can change this name in Shell by going to Settings > Keycard > Rename