Features:brand new and high qualityUse original FT232RL.Support for Mac, Linux, Android, WinCE, for Windows 7/8/8.1/10...Support 3 power supply modes: 5V external power supply; 3.3V external power supply; external power supply (requires 3.3V-5V).With 3 LEDs: TXD LED, RXD LED, POWER LED.TXD, RXD, RTS, CTS: Use curved pin header to lead.PIN for other functions: reserved pads (distributed headers and sockets, which can be plugged up or down to connect to the user system; the PIN spacing supports the insertion of a universal board). Specifications:Material: MetalWeight: 23gSize: 6.5x2.3cm/2.56x0.91inchColor: Blue 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.3.This product does not have a USB cable. The module is USB to TTL level, please do not directly connect to RS232 level, so as not to burn the module. Package includes:1x USB to TTL Serial Module