These Power Brick Holders add function and convenience to the Luxor 30-Tablet/Chromebook charging cart, part number LLTM30-B. Available as a set of two (providing four shelves total), they easily mount behind the cart’s rear access door using existing hardware that comes with the charging cart. Once installed, the holders serve both as cable raceways to keep cords tidy, as well as generously-sized trays to organize the power bricks that come with many laptop and tablet power supplies. This helps you keep the rear compartment of the charging cart free of clutter while preventing an unsightly tangle of cables.