This 4-port USB hub adds expanded USB functionality to your Raspberry Pi and includes a USB to UART converter for easy serial communication. It is compatible with various Raspberry Pi models, and its compact design fits perfectly with the Zero, Zero 2W, Zero W, and Zero WH. Features: - 4 USB ports, compatible with USB 2.0 and USB 1.1 - Onboard USB to UART converter with enable/disable switch for convenient serial debugging - Multiple indicator LEDs to monitor power status, USB to UART activity, and each USB port - Color: Blue - Material: PC (Polycarbonate) Package Contents: 1 x USB to UART Module (Disclaimer: Printed labels and text on the product may vary between batches, but this does not affect functionality.) Note: The package includes only the items listed. Other accessories shown are not included. Note: Colors may vary slightly due to lighting and screen display differences. Measurement tolerance: ±1-3 cm.