Model Number : 5pcs/lot MFRC-522 RC522 RFID NFC Reader RF IC Card High Quality MFRC-522 RC522 RFID NFC Reader RF IC Card Inductive Sensor Module For Arduino Module + S50 NFC Card + NFC Key RingDescription:Current :13-26mA / DC 3.3VIdle Current :10-13mA / DC 3.3VSleep current: <80uAPeak current: <30mAOperating Frequency: 13.56MHzSupported card types: S50, S70, UltraLight, Pro, DesfireProduct Physical Characteristics: Dimensions: 40mm × 60mmEnvironmental Operating temperature: -20-80 degrees CelsiusEnvironment Storage temperature: -40-85 degrees CelsiusRelative Humidity: 5% -95%Data Transfer Rate: Max. 10Mbit / sPackage Included:1 X RFID-RC522 module one;1 X Standard S50 Blank Card;1 X S50 shaped cards one (as shown keychain shape);1 X Straight row pin1 X Curved row pin