Amazon.com: StarTech.com Open Slot Cable Management Raceway with Cover, 2"( 50mm) W x 2"(50mm) H - 6.5ft(2m) Length - 1/4"(8mm) Slots, PVC Network Cable Hider/Wall Wire Duct, Max 80 Cables, UL Listed (CBMWD5050) :
Cable Duct :: Square Cable Duct :: Twin Compartment Cable Duct 25mm x 50mm x 4 Meter Length White - SCHNAP Electric Products - Product View