Features: USB 2.0 full speed compatible, standard HID-class devices—no custom driver required 8 GPIO with configurable options; all customization and configuration can be selected through a simple GUI-based configurator No need to develop complex firmware; CP2112 devices enable USB connection with minimal development effort Integrated USB transceiver; no external resistor required Integrated clock; no external crystal needed No firmware development required Suitable for use in USB dongles, instruments, controllers, and point-of-sale products Specifications: Material: PCB USB bus power supply: 4.0–5.25V Self-powered: 3.0–3.6V Input/output voltage: 1.8V–VDD Operating temperature range: -40°C to 85°C Size: Approx. 29.5 x 21.3 mm Note: 1. Please allow 1–2 cm variation due to manual measurement; ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package includes: 1 x Communication Module