This specific card reader differs in terms of it requiring additional I/O (because of those normally using solenoids to lock the card in) and using RFID cards instead of magnetic stripe cards. Here's a list of games I gathered that use this card reader:
Sega World Club Champion Football
Dragon Treasure 2/3
Ghost Squad (both Chihiro and Lindbergh)
Tekken 5
Virtua Tennis 3
Other Lindbergh games?
Edit: I failed to notice a "certain emulator I'd rather not name" has card reader emulation for Virtua Tennis 3.
This specific card reader differs in terms of it requiring additional I/O (because of those normally using solenoids to lock the card in) and using RFID cards instead of magnetic stripe cards. Here's a list of games I gathered that use this card reader:
Edit: I failed to notice a "certain emulator I'd rather not name" has card reader emulation for Virtua Tennis 3.