Credentials for Magstripe readers, that typically require being swiped to be read

Wiegand Swipe cards, that must be physically run through the reader in order to be transmitted

Proximity, the first of the contactless physical access technologies, operating over 125kHz for near field transmissions

Proximity credentials with a higher level of security, requiring transmission of an encrypted access key between the credential and the reader before it will even verify the credential

13.56 MHz smart credentials that operate in access control systems as well containing other types of data such as linked credit cards and biometric data

A series of contactless smart cards that function as access control credentials and contactless smart cards, similar to iClass