Welcome to our store! This product is a 125kHz RFID reader/writer with a USB interface. It is fast at reading RFID tags and can be connected to a PC to read the tags and update the application. It can also read, write, copy, and duplicate ID cards for reuse. This product is widely used in various applications such as entrance guard, consumption, hotel locks, water meters, electricity meters, gas meters, and IC card management systems. Specifications: - Chip type: ATA5577 - Storage capacity: 363 bits - Operating frequency: 125 kHz - Maximum read/write distance: 3-5 cm - Size: Approx. 10.7 * 6.8 cm / 4.21 * 2.68 inches - Package weight: 132g Package list: - 1 x RFID reader - 1 x CD driver - 1 x Card - 5 x Key tags Please note that the new type and the old type of this product will be sent randomly, and please make sure you do not mind before ordering. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the item, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.