Specification: 1.Gilt PCB 2.Support I2C, SPI and HSU (High Speed UART), Change between those modes. 3.Support RFID reading and writing, P2P communication with peers, NFC with Android phone. 4.Typical Operating Distance have been updated to 5cm~7cm reading distance. 5.Work in NFC Mode or RFID reader/writer Mode. 6. Plug and play, for compatible. 7. Built in PCB Antenna, with 4cm~6cm communication distance. 8. On-board level shifter, Standard 5V TTL for I2C and UART, 3.3V TTL SPI. 9. Work as RFID reader/writer. 10. Work as 1443-A card or a virtual card. 11. Exchange data with other NFC devices such as smartphone. RFID Reader/Writer Support: 1. 1k, 4k, Ultralight, and DesFire cards. 2. ISO/IEC 14443-4 cards such as CD97BX, CD light, Desfire, P5CN072 (SMX). 3. Innovision Jewel cards such as IRT5001 card. 4. FeliCa cards such as RCS_860 and RCS_854.

?RFID Reader/Writer Support: Mifare 1k, 4k, Ultralight, and DesFire cards, ISO/IEC 14443-4 cards such as CD97BX, CD light, Desfire, P5CN072 (SMX), Innovision Jewel cards , FeliCa cards(such as IRT5001 card, RCS_860 and RCS_854). ?On-board level shifter, Standard 5V TTL for I2C and UART, 3.3V TTL SPI,Built in PCB Antenna, with 4cm~6cm communication distance. ?Support I2C, SPI and HSU (High Speed UART), NFC RFID reading and writing, P2P communication with peers. ?Voltage?: 3.3V-5V. ?PCB Dimensions Size?: approx 1.68in*1.59in.