12U Slide-Out Server Rack. Store your servers, network and telecommunications equipment in a pull-out 12U open-frame rack that you can rotate for easy access to mounted equipment - Store your servers out of the way in a cabinet or cupboard - Open frame provides passive cooling for equipment - 12U slide out server rack / 12U open frame rack / 12U rack / 12U server rack / 4 post rack / Adjustable server rack / Computer rack / Equipment rack / Pivoting rack / Pull-out rack / Network enclosure / Slide out rack