Description: 1. This product is a cost-effective Linux development board based on the Core1106 series module, to provide developers with a simple and efficient development platform. 2. Supports multiple interfaces, such as MIPI , GPIO, UART, SPI, , USB and 4G module M.2, etc., suitable for embedded application development. 3. USB expansion, flexibly switch USB-C/4xUSB-A HOST interface through the dip switch. 4. Audio interface, patch microphone + microphone expansion interface + 3.5mm audio output interface to meet a variety of audio application scenarios. 5. 4G module M.2 interface, the USB-A-4 interface can be switched to the 4G module M.2 interface through the dip switch. Specifications: Model: Pi A (with 4G module) Processor: RV1106G3 NPU: 1TOPS Memory: 256MB DDR3L Due to different batches, there may be differences in product appearance and printed text, which not affect use Color: black Material: PCB Package Contents: 1 x Pi RV1106 Linux Development Board Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.