YW-605 is a contactless card reader/writer. User can Operate contactless card by API of DLL. this Reader supports ISO14443A, ISO14443B, IS)15693. User can easily use the Reader by the DLL. there are demos in VB,VC,Delphi, C++ BuilderC#.net, WEB Client etc. Frequency: 13.56M HF short distance support card type: Mifare S50,S70Mifare ProISO14443A, ISO14443B ISO15693 and others. Feature: RS232 and RS485 Baud19200BPS Example VB,VC,Delphi, C++ Builder C#.net, WEB Client, Beeper+LED+1SAM slot. Power DC5V10% Max 1.5W Temp. -10 +70 Humidity 35% 95% Size 120 * 84 * 25 (mm) Weight100g. box with 10*10*5cm.