3.3V 5V TTL Bi-directional Level Converter Board Geekcreit for Arduino - products that work with official Arduino boards

Feature 2 channels of high voltage logi1c and low voltage logi1c bilateral switching2 channel of high voltage lo1gic switch low voltage lo1gicinto unitary transformaSize 15 5mm x 16mm x 11 5mmModule is compatible with the breadboard it can be put on the breadboard directlyDescription High Voltage 5VLow Voltage 3 3VGND for negative power5V TTL RXI input 3 3V TTL RXO outputTXI input output of 3 3 V TTL TXO input output 5 V TTL TXI and TXO bilateral switchingNote It is not soldered Package included 1 x Log1ic Level Converter