13.56 MHz 125 kHz dual-frequency RFID access card.

Description 13.56 MHz 125 kHz dual-frequency RFID access card. Frequencies: 13.56 MHz (HF – high frequency, e.g. MIFARE® Classic, ISO14443A). 125 kHz (LF – low frequency, e.g. EM4100, TK4100, HID clones). Key fobs: China chip – typically clonable or universal chips, for example: 13,56 MHz: MIFARE® Classic 1K kloon, UID changeable chip 125 kHz: EM4100, TK4100, T5577 (clonable and reprogrammable). Material: PVC plastic (white or printable). Dimensions: 85.5 × 54 mm (standard ID card size, ISO/IEC 7810). Reading distance / operating range: 125 kHz: up to 10 cm 13,56 MHz: up to 5–10 cm (depending on the reader) Features and advantages: Dual frequency – operates in both LF and HF systems. Universal compatibility – can be used with both older 125 kHz and newer 13.56 MHz readers. Clonable – especially useful for testing, cloning, and development purposes. Battery-free – passive card powered by radio frequency energy. Printable – suitable for printing logos, QR codes, or personal data.