This power cable is designed to work seamlessly with a range of Sunpak flashes, including the 522, 544, 455, and 555 models. It is compatible with Quantum brand equipment and comes in used condition. The cable is specifically suited to powering Sunpak flashes and is a reliable accessory for photographers who require consistent and high-quality results. The cable is ideal for use in a range of settings, including in-studio and on-location shoots.