CAT9555 IO Expansion Module Board I2C Interface Expands 16 bit Parallel GPIO Expander, SMBus I/O Port, with Pre-soldered Header

The CAT9555 IO Expansion Module provides 16−bit parallel input/output port expansion for I2C and SMBus compatible applications.
These I/O expanders provide a simple solution in applications where additional I/Os are needed: sensors, power switches, LEDs, buttons, and fans.
Specifications:
Dimensions: 45mm(Length)*25mm(Width)
Number of I/O ports: 16.
Control chip: CAT9555.
Signal interface: I2C.
Supply voltage: 3.3 V/5 V.