brand new and high quality Material: Electronic components Color: See pictures Color: See pictures USB to ESP8266 Serial Wireless Wifi Module Developent Board Adapter Adopt CH340 to Serial Port chip,stable performance,good compatibility Adopting the 3225 SMD crystal can promote the working stability of sercial port and be elegant with high end. This module is USB to Serial Module and in charge of making USB port convert into the suitable ESP8266 Serial Port Module. The pinboard with inegrated solid capacitors 1000uF ensures the current supply and make the WIFI module no system halted and no responses due to the power problem. Size: 4.9*1.7cm/1.93"*0.67" (L*for W) No Retail Packages Quantity:1Pc Note: Due to the difference between different monitors, the picture may not reflect the actual colorof the item. Thank you!