I got this splitter for free by purchasing a StudioRTA desk from Thomann (you can choose a "bundled" version, for no additional charge). Wouldn't buy it separately, as it lacks a power button.
The cable is thick and well-isolated - just what you absolutely need in audio applications where you have to plug in some real power amps.
The only 2 reasons I gave it 4 stars are these:
1.) It doesn't have a power on/off button;
2.) The plastic - it feels a bit on the cheap side, with the black color having some uneven patterns (probably wasn't mixed thoroughly with the black dye in the factory).
Functionally, though - it's solid.