Misplace your heatsink? Try checking your wallet, right in between your Visa credit card and your Paypal debit card. It's not outrageous, it's Novel Concept Inc.'s new ThinSink cooler, which the company claims is the world's thinnest forced convection (fan cooled) heatsink. This thing's not just as thin as a credit card, it's even skinnier, yet supposedly has a volumetric cooling efficiency 25 times greater than today's best microprocessor heatsinks, Novel Concepts says. Can it really be true?

Zalman has attracted more than a few fans of air cooling (pun only slightly intended) with its CNPS line of high-end heatsink/fan combos, and the company's newest entry -- the CNPS 10X Extreme -- trades in its signature circular heatpipe design in favor of a block design.

The new cooler supports a variety of sockets, including Intel's 775, 1366, and upcoming 1156, and AMD's AM3, AM2+, AM2, 754, 939, and 940. The nickel-plated cooler also comes with what Zalman says is the "world's first RPM controllable PWM fan speed controller," which overrides the motherboard's PWM signal for manual fan speed control, or can alter the signal for low, medium, or high. Best of all, Zalman says the PWM mate can be installed on the case's exterior, when far too often that isn't the case.

Five heatpipes run up through the 10X, which checks in at a hefty 920g. Other specs include aluminum fins, copper base, and noise levels between 20 - 30dBA.

No word yet on availability or price, though you can spy a handful of pics here.