Features: USB to UPDI Conversion: This improved UPDI USB programmer features CH340E chip for efficient USB to UPDI data transfer through USB C port, perfect for programming with stable performances. Improved indication Programming: Designed with an included 12V indication module, this programmer supports advanced UPDI programming for easy firmware updates and problem solving. Power & Data Setting Adjustment: The built in change allows easy changing between 3.3V and 5V power/data configurations, ensuring wide compatibility with various microcontroller needs without additional adapters. Easy to Use Setup: Comes with dedicated connectors and connection wires for simple attachment to development boards, reducing wiring complexity for quicker programming setup. Compact Size: With small dimensions (29x17.7x4.9mm), this lightweight programmer is ideal for embedded projects and portable debugging while providing dependable outcomes. Specifications: Type: UPDI USB programmer Component: PCB + electronic components Dimensions: 29x17.7x4.9mm/1.14x0.70x0.19in Package Includes: 1PC High voltages UPDI USB programmer note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.