What frequency is HID proximity card?
HID proximity cards can operate on two different frequencies: 125 kHz (low-frequency) : This is the most common frequency for HID Prox cards. These cards are less secure than higher frequency cards because they don't use encryption. 13.56 MHz (high-frequency) : HID iCLASS and iCLASS Seos cards use this frequency. These cards offer better security features like encryption. There are also some HID cards that are dual-frequency, meaning they can operate at both 125 kHz and 13. 56 MHz. These cards are typically used in situations where an organization needs to support both older and newer readers. Here's a table summarizing the different HID card types and their frequencies: HID Card Type Frequency HID Prox 125 kHz HID iCLASS 13.56 MHz HID iCLASS Seos 13.56 MHz HID iCLASS + Prox Dual-frequency (125 kHz and 13.56 MHz) What is HID iCLASS cards?