Features: Chipset: FT232RL, not genuine FTDI chip, Working Voltage: 3.3V/5.5V. Pin Definition: DTR,RXD,TX,VCC,CTS,GND. RXD/TXD transceiver communication indicator, with 500MA self-restore Fuse. Range of application: Switch And Sensor For Arduino STM. Support Win95/98/98se/ME/2000/XP/win7 32bit 64bit /Vsita/, do not Support Win8. brand new and high quality Specifications: Model Number: FT232RL FTDI USB Supply Voltage: 3.3V 5.5V Dissipation Power: 3.3V 5.5V is_customized: Yes Operating Temperature: -40-+85 Application: Computer Package: DIY KIT Functions: Electronic Module Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x USB 3.3V 5.5V to TTL Serial Adapter