These are E-outstanding 2-pin single female to dual male jumper splitters for PC motherboard front panel connectors.
They allow the connection of an additional power button or LED indicator to a single motherboard header pin set.
The cables are labeled for specific functions: “POWER SW”, “RESET SW”, and “HDD LED”.
This enables customization for dual boot setups, external switches, or multiple indicators.
The power switch (SW) operates as a simple mechanical switch, so polarity does not affect its function.