Features: new and high quality Suitable for firmware burning test of ESP-12S or 12F or 12E or 07S or 07 or 01S or 01 modules. Support firmware one click download function. Safe and reliable, small size and long service life. Lead out all ports and can be used as minimum system development board or fixture for small batch burning. ESP8266 Burner Development Board also has power indicator light, burning indicator light communication indicator light. Specifications: Material:ABS Application:For ESP-12S or 12F or 12E or 07S or 07 or 01S or 01 Size:Approx.46x49mm or 1.81x1.93inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Development Board