Radio frequency (RFID) cards, technically known as "contactless cards," are sometimes called IC cards . However, contact IC cards are also called IC cards , and RFID IC cards generally refer to high-frequency cards.Since ID cards are commonly called low-frequency cards, it's more direct to call contactless chip cards radio frequency cards or contactless cards.

Typical
RFID cards are classified according to carrier frequency into low-frequency
RFID cards ( low-frequency...)Card), high-frequency radio frequency card ( high frequency)Card )UHF
RFID card ( UHF)Cards )
① Low-frequency cards have a frequency of 125~134.2KHz (unit: kilohertz), also known as low frequency (LF), such as the EM4100 ID card, T5557 card, TI's RI-TRP-R4FF low-frequency read-only card, TI's RI-TRP-W4FF low-frequency read-write card, HID's 1326 low-frequency thick card, HID's 1386 low-frequency thin card, etc.
② High frequencyThe card 's frequency is 13.56MHz (megahertz), also known as high frequency (HF), such as the MF1 card and I-CODE-II card. Ordinary cards are passive.
③ Ultra- high frequencyCardThe frequencies are 433.92 MHz and 840~960 MHz (unit: megahertz), also known as ultra-high frequency (UHF) frequencies, such as UCODE cards. 433.92 MHz is typically used for active cards (with an internal battery), while 860~960 MHz is typically used for passive cards (without an internal battery). Jiezhong IoT is a manufacturer integrating design, production, and sales of PVC cards and RFID
Smart Cards . The company is committed to producing and selling various types of PVC cards, recharge cards, membership cards, NFC cards, shopping cards, IC cards , ID cards , and UHF cards .
We offer a wide range of products including campus cards , dual-frequency cards,Since our establishment, our company has adhered to the business philosophy of "high technology, high quality, low cost, and diverse product range." Welcome to visit us!