?This USB 125KHZ EM4100 RFID proximity reader is specially designed to read the IC or ID card to identify the exact identity of someone. Digitally encrypted£¬ this USB 125KHZ EM4100 RFID proximity reader is characterized by high security and durable service. Additionally£¬ the reader has durable and scratch resistant polycarbonate housing to protect it and ensure a successful operation even in harsh environment. What&acute;s more£¬ it can be mounted to metal door frame (mullion) or any flat wall surface. What an accurate and reliable door accessory it is!                                    Features            With 5 cards and 5 keytagsWith all-in-one card systems£¬ ID/IC card and data collection terminalConsist of a simple circuit and control program£¬ good for you to complete the task of reading RF cardSupport card operations and read the card serial numberDesigned with protection of reverse powerIt has high-voltage protection function125Khz RF operating FrequencyUSB interface(no external power supply is needed)Supports all 125Khz EM4100 ID cards.                                                            Specifications            Output format    10 digit ID numbers    <br>Dimensions    (10.8 x 8 x 2.5)cm / (4.25 x 3.15 x 0.98)" (L x W x H)    <br>Weight    80g / 9oz    <br>Color    Black    <br>                                                            Package Includes            1 x USB 125KHZ EM4100 RFID Proximity Reader1 x USB Cable5 x Keytags5 x Cards