Feature:1. Simpler Works: The multiplexer is at I2C address 0x70, which can be adjusted from 0x70 to 0x77, you just write a single byte with the desired multiplexed output number to that port, and bam any future I2C data packets will be sent to this port.2. Great Control: You can use 8 of these multiplexers at each 0x700x77 address in order to control 64 identical I2C addressing sections.3. Wide Matching: Compatible with 3V and 5V, so you can use it with any logic level, very practical, reliable and efficient.4. Practical Use: Connect up to 8 I2C devices of the same address to a micro controller and route commands to a selected set of I2C pins.5. Easy to Install: Comes with 5 sets, and each set has 2pcs pin header, can also be plugged into a solderless breadboard.Specification:Item Type: Development BoardSupply Voltage: 1.65V to 5.5V. IIC Address: 0x70 - 0x77Frequency: 0 to 400kHz. Channel: 1 to 8 channels. Resetting: Power on reset. .Package List:5 x Development Board10 x Pin Header