Is there any difference between “User Card A” (For Finger-Only/Card-Only) and “User Card B” (For Card+Fingerprint) coming with TR4050-10

The difference between User Card A and User Card B is the format. User Card A is formatted for Finger-Only or Card-Only usage. User Card B is formatted for Card+Fingerprint usage. You can’t use User Card A for Card+Fingerprint mode and can’t use User Card B for Finger-Only or Card-Only mode.