Fangrui Product Details Fully Supports Win8, Win7, Winxp, Win2k, Wince, Linux, Mac Systems, 32-bit And 64-bit Systems. Cp2102 Core Chip: Cp2102 Is A Usb To Serial Port Chip With Good Quality, Stability, And Performance Far Exceeding That Of Cheap Similar Chips, Such As Pl2303, Ft232, Ch341, Etc. Small Size: The Circuit Board Is Small In Size, Less Than The Size Of A Usb Flash Drive, And Only Occupies The Width Of A Usb Port. Even On Those Laptops Where The Two Usb Ports Are Very Close Together, You Can Easily Place Two Side By Side. 3.3v And +5v Compatible: This Product Supports 3.3v Voltage. Nowadays, Many High-end Microcontrollers, Such As Arm, Stm32, Dsp, Etc., Use 3.3v Voltage. Other Modules Are Only Compatible With 5v Voltage, They Do Not Have 3.3v Voltage Output Function. Power Supply Output: This Module Can Be Used To Power The Microcontroller System To Facilitate Debugging. 5v-500ma Or 3.3v-100ma. Material: Plastic+metal Colour: As Shown Package Contents: 1 X Module 1 X Connecting Cable Only The Above Package Conten