Features:_x000D_1. Use CH340G replace the CP2102._x000D_2. Open-source, interactive, programmable, low cost, simple, smart._x000D_3. Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware._x000D_4. Nodejs style network API._x000D_5. Event-driven API for network applications, which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style._x000D_6. Greatly speed up your IOT application developing process._x000D_7. Lowest cost WI-FI._x000D_8. We provide the best platform for IOT application development at the lowest cost._x000D__x000D_Specification:_x000D_Condition: 100% Brand New_x000D_Item Type: Wifi Module_x000D_Size: Approx. 5.7 x 3cm / 2.2 x 1.2in_x000D__x000D_Package List:_x000D_1 x Wifi Module_x000D__x000D_Note:_x000D_1. Please allow slight error due to manual measurement. Thanks for your understanding._x000D_2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard._x000D__x000D_3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Use CH340G replace the CP2102. 2Open-source, interactive, programmable, low cost, simple, smart. 3Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware. 4Event-driven API for network applications, which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style. 5Greatly speed up your IOT application developing process.