Product description:

•    Support 3.3V, 5V USB TO TTL
•    chipset FT232RL
•    USB power has over current protection, using 500MA self-restore fuse
•    RXD/TXD transceiver communication indicator
•    Pin definition: DTR,RXD,TX,VCC,CTS,GND
•    Pitch:2.54mm
•    Module size:36mm(length)*17.5mm(width)