Features 【Great Control】 You can use 8 of these multiplexers at each 0x70‑0x77 address in order to control 64 identical I2C addressing sections. 【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. 【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. 【Wide Matching】 Compatible with 3V and 5V, so you can use it with any logic level, very practical, reliable and efficient. 【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 Board Supply Voltage: 1.65V to 5.5V. IIC Address: 0x70 - 0x77 Frequency: 0 to 400kHz. Channel: 1 to 8 channels. Resetting: Power on reset.  Package List: 5 x Development Board 10 x Pin Header Package List 5 x Development Board 10 x Pin Header