Silent Mode: 1,350rpm ±10%; Normal Mode: 2,650rpm ±10%
Zalman bills itself as the "quiet cooling solution" and they have a reputation for easy to use, reliable products. They also have a reputation for creating products that look as good as they run. A quiet, downward blowing 80mm dual ball bearing fan sits at the heart of an array of pure aluminum thin fins.
While it operates at a low 28.5 dBA in its normal 2,650 RPM setting, its Silent Mode drops it to 18.5 dBA as well as eliminating vibration. With its unrestricted flow, it cools not only the VGA chipset and RAM, but the other VGA components. And the newly improved installation structure provides easy installation and broad compatibility.
Ultra Quiet DesignThe exclusive VFHS (Variable Flower Heatsink) technology is incorporated for enhanced air flow structure and the optimized heatsink provides high performance cooling in Quiet Mode.
Powerful Cooling PerformanceThe 0.4mm pure aluminum fins with maximized dissipation area and the fan embedded inside the heatsink optimize cooling performance.
Excellent Peripheral Component CoolingThe 80mm fan cools not only the heatsink and VGA RAM, but all other peripheral components surrounding the VGA chipset.
Fan Speed ControlThe included Fan Speed Control Connector enables users to select fan speed for their needs