A 360mm AIO cooler with an infinity mirror design and a 280W TDP (Thermal Design Power) description indicates a liquid CPU cooler with a 360mm radiator, an infinity mirror effect on the pump/water block, and the capability to handle a processor with a 280W TDP. The infinity mirror provides a unique visual effect, while the 280W TDP rating suggests it's designed to effectively cool processors that generate a significant amount of heat.