A power splitter cable that serially supplies 9 VDC from one AC adapter is a useful product for reducing space on your pedal board because one cable can feed power to multiple effect units. However usual daisy-chain type splitter cables have a long common section in which current runs and this is one of the causes of noise and reduced voltage. Since Free The Tone's 4-way DC power splitter cables are split at a point close to the power source, this common section is very short, allowing your effect units to be powered under ideal conditions.