The Zalman CNPS7X LED may be short on size, but it certainly makes up for it in design and performance. The Zalman CNPS7X uses Zalman's V-Shaped fin design to maximize efficiency, allowing the CNPS7X to effectively do the work of much larger cooling solutions. The V-Shaped design directs more air directly through the fins at the heat pipe area with very little loss, creating significantly more air where it's needed for actual effective cooling. This means more air over the six copper composite heatpipes than would be expected from a 90mm fan solution. The 90mm blue LED fan included with the CNPS7X LED is PWM controlled with a maximum RPM of 1950, while still maintaining a whisper quiet 25dBA. This efficient design allows for the Zalman CNPS7X LED to stand a mere 135mm tall, with an equally small 90x127mm footprint. The CNPS7X is small enough for almost any case, and should almost never pose an issue of blocked RAM slots.