The HDPlex H5 is the best performing fanless heatsink-case pc, able to cool a wide variety of processors. The case measures 16.9×13.9×4.5 inches (LxWxH). The H5 case is a heatsink that directs heat from the internal parts to the outside of the case through either 8 or 16 heatpipes. It is compatible with all motherboard sizes and processors with TDPs of up to 95W. There is space for up to 4 2.5″ storage drives. It is compatible with graphics cards or other PCIe expansion cards. The case has a 3.5 mm audio jack, 2 USB 3.0 ports, 2 USB 2.0 ports, and a power on/off button on its right side. It is compatible with external power supplies.