DescriptionThis item is a FTDI USB2.0 to TTL serial converter module, which uses a 6-pin header on the bottom to make it smaller and more compact and support 3.3V, 5V, with chipset FT232RL. USB has power over current protection and self-recovery fuse.Features- Use a 6-pin header on the bottom, which makes it smaller and more compact.- Support 3.3V, 5V.- Chipset FT232RL.- USB has power over current protection, 500mA self-recovery fuse.- RXD / TXD-transceiver communication display.- Pin definition: DTR, RTS, BLK, GRN, GND.- Module size: Approx.3.1 * 1.75cm / 1.22 * 0.68 inch.- Interface: USB 2.0.