The flykantech.com 4XRS232-D empowers you to effortlessly connect up to 4 x RS232/Serial devices to your Mac or PC laptop/desktop computer using just a single USB port, seamlessly integrating with your computer as if it had built-in DB9M serial connectors. With 3 x Serial Ports (Male) and 1 x Serial Port (Female), the 4XRS232-D offers versatile connectivity options. This RS232 Serial Hub is bus-powered design eliminates the need for an external power adapter, simplifying your setup.