Features: The CH376S U Disk Read Write Module simplifies U disk/memory card read/write operations with builts in FAT16 FAT32 and FAT12 file system support, eliminating complex coding for seamlessly microcontroller integration. Featuring selectable parallel/serial mode, 3.3 v low power design, and real time status LEDs, this module ensures versatilitys connectivities and clear operational feedback for embedde projects. Ideal for engineers and electronics enthusiasts to develop data logging systems, multimedia storage solution. Perfect for industrial automation,intelligent home setups, and portable equipment requiring reliable USB/memory card data transfers without taxing microcontroller resources. With SPI interfaces and broad FAT16/FAT32 compatibility, this compactly USB Read Write module streamlines firmware development while maintaining stable 5V power output for demanding applications. Specifications: Component:Plastic Size: Approx.48.3x27.7mm/1.9x1.09inch Interfaces: USB voltages and Current: 3.3 v LD01117on board, maximums 500mA current is provided Package Includes: Package A 1pc U Disk Read Write Module Package B 3pcs U Disk Read Write Module note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.