‍Key Features:

• DC3.3V ~5V power supply, UART-TTL interface;
  Compliant with ISO14443A/B, ISO15693 standard,
  Support MIFARE® Classic 1K /4K, MIFARE Ultralight®/Ultralight® C,MIFARE® PRO, ISO14443A-4 contactless CPU card, I CODE SLI, TI 2048, etc
  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                                CHK303MT

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
ISO14443B  SRI4K, SRIX4K, AT88RF020, 66CL160S, SR176
ISO15693  EM4135, EM4043, EM4x33, EM4x35, I-Code SLI / SLIX, M24LR16/64, TI Tag-it HF-I, SRF55Vxx (my-d vicinity)

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