‍‍KEY Features:

DC3.3V ~5V power supply, UART-TTL interface;

Compliant with ISO14443A standard,
Read/Write or Read only UID of MIFARE® Classic 1K /4K,MIFARE Ultralight®, MIFARE Ultralight® C etc

Support to create standard Data file, Back-up Data file, Value file, Linear Record file, Cyclic Record file and Transaction MAC file)

Support KEY Authenticate,get KEY Version, change KEY, etc;

Support DES/3DES/AES/MAC encryption algorithm;
External antenna, reading range up to 5 ~ 7cm
External LED and BUZ available ( external driver circuit needed)

Technical Parameters:

Electrical Specification 
Power supply                      DC 3.3V ~ 5V
Power consumption          Max current:<50mA,   Standby current: <1 mA
Operation frequency         13.56MHz
Baudrate                             9600~115200 bit/s ( default 9600bps)
Interface                              UART TTL
Antenna                              External, stamp hole
Reading range                 Up to 4 cm ~ 10 cm( depends on antenna and cards)

Mechanical Specifications  
Dimension                       25mmx16.5mmx2.8mm (LxWxH)
Weight                              3g
Material                             FR-4, Blue
Model                               CHK302MT

Environmental Conditions  
Operation temperature      -20°C～ +80°C
Storage temperature         -40°C～ +85°C
Humidity  Relative humidity     5%～95%

Supported Standard/ Tags 
ISO14443A  Read/Write:
MIFARE® Classic 1K /4K, MIFARE Ultralight®, MIFARE Ultralight® C, NTAG 21x

Read UID only:
Read UID only of all other ISO14443A RFID tags

SDK information  
Demo software  WINDOWS,  C# language
Files  Comprotocol document
API document
User Manual
Demo.exe

  Note:  Other functions and details to be continued and upgrade