The Gigaware RadioShack Cat5E/Ethernet Splitter/Combiner 2790033 is a white adapter that allows you to split Ethernet signals for multiple devices. It features a Cat 5e Ethernet connector on one end and an RJ-45 Ethernet female connector on the other, making it compatible with the specified model 2790033. This splitter is ideal for networking setups where you need to distribute Ethernet connections to multiple devices efficiently.