Technical Specifications Dimensions: 98mm (L)× 65mm (W)× 12.8mm (H) ibu: 70grams Interface: USB Full Speed Operating Distance: ≤50mm Supply Voltage: Regulated 5V DC Supply Current: 200mA(ọrụ); 50mA(kwụrụ n'ụsọ); 100mA(nkịtị) operating okpomọkụ: 0°C~+50°C Operating Frequency: 13.56MHz Standards/Certifications: ISO14443 1-4, EC, FCC, RoHS Compliant Operating System Support: Windows 2000, 2003, XP32, XP64, Vista 32 na Vista 64