The item is a professional and practical module data logging shield V1.0, which is mainly made of durable PCB board and plastic mateirals, and works Compatible with UNO, Duemilanove, , Leonardo or / Mega R3 or higher. You can - to to a file in any FAT16 or FAT32 formatted card, you can read any drawing, spreadsheet or analysis program. Built-in 3.3V regulator is both a reliable reference voltage and also reliably runs cards that require of power to run. Features - Brand: Deek-Robot. - Color: as shown in the pictures. - Material: durable hard PCB board and plastic. - and Module Data Recorder Data Logging Shield V1.0. - interface works with FAT16 or FAT32 formatted cards. 3.3V level shifter circuitry prevents damage to your card - Real time clock (RTC) keeps the time going even when the is unplugged. The battery backup lasts for years - Included libraries and example code for both and RTC mean you can quickly Prototyping area for soldering connectors, circuitry or sensors. - Built-in 3.3V regulator is both a reliable reference voltage and also reliably runs cards that require of power to run - Works Compatible with UNO, Duemilanove, , Leonardo or /Mega R3 or higher. /Mega R2 or lower are not supported. - It is powered by 1 * 3V CR1220 lithium button cell (Not included). Package list: 1 * Module Data Recorder Data Logging Shield V1.0 Compatible for SD