Enhanced GPU cooling efficiency. Retaining the great CPU and system cooling performance of the original, the LD03-AF adds an air inlet cutout to the left tempered glass panel for enhanced air cooling capacity to most high-end graphics cards on the market.Stack effect design. With motherboard rotated 90 degrees, cool air can flow smoothly from the bottom up for the most efficient heat dissipation to all important heat-generating components. Exclusive tool-less buckle design makes front panel and side panels removal easier than ever. Exterior also looks sharper and cleaner as a result of no exposed screws. LD03-AF's generous interior space means there is nearly no limit in what you can build into it