A cable splitter itself does not directly affect internet speed. Unlike active devices (which require power), splitters operate without electricity, relying solely on the physics of. Cable splitters, also known as network taps or cable signal repeaters, are designed to split a single internet connection into multiple channels or frequencies, resulting in slower internet speeds. Not all splitters. A fiber broadband provider typically determines and overall split ratio for the network, such as 1x32 or 1x64, and uses combinations of splitters to meet that ratio with each PON port. However. An internet splitter, also known as an Ethernet splitter or network splitter, is a device that allows you to connect multiple devices to a single internet connection.