Many products are now shipped with what is known as a wallwart power supply. It allows a manufacturer to ship 1 model worldwide and just change the adaptor for each region. Unfortunately most of these wallwarts are not the best power supply design.
Sbooster supplies a high quality audiophile replacement for these wallwarts and switching allows your electronics to operate more as the designers intended. They work for audio and video equipment, even network routers can be improved by switching to Sbooster.