LF + HF cards are the most common dual-frequency cards and usually have an HF antenna laminated around the outside of the card with a thick coil LF antenna contained within.These Dual Frequency (125 KHz+13.56 MHz) RFID Cards are designed for logistics, anti counterfeiting, and access control.

UHF+HF dual frequency standard card is developed based on UHF and HF RFID technology, which supports ISO18000-6C/EPC Gen2 protocol as well as ISO14443A protocol. It contains UHF chip such as Alien H3, with HF chip(MF 1K,MF 4k,ultralight,NFC etc.) in it. Users can use it as a UHF card and also a MF card.These dual frequency cards are becoming increasingly popular in loyalty and payment schemes that also want to track attendance and location of a customer.

Dual frequency cards or combi cards are a term applied to cards that contain two or more embedded chip technologies in a card. The LF + UHF cards are used in specialized situations where simple access control is required alongside personnel tracking.Available chip include:TK4100,EM4100,EM4305,T5577,Alien H3 etc.