Ergonomic Design Six (6) height settings for comfortable viewing angles. Exclusive Fan Blade Design Provides better air dissipation to increase laptop performance. Loop Dynamic Bearing (LDB) Self-lubricating fan features highest IP6X dustproof rating and stays durable for over 160,000 hours lifespan. Silent Driver IC Generates ultra-low noise, minimal vibration, and extremely low power consumption. Ultra Quiet Operation Thanks to the new Loop Dynamic Bearing technology, the ErgoStand III is able to provide 72 cubic feet per minute of airflow at only 21 dBA, which is equivalent to the volume of a rustling leaf in a light breeze. Aluminum Fan Speed Dial High quality, precision-etched aluminum dial includes fan toggle (on/off) function. Dust-Free Maintenance Removable front plate enables quick cleaning to sustain high performance. Cable Management and USB Hub Grooves and hooks keeps wires clean and tidy while the USB hub expands one laptop port into four (4). Plug in external keyboards, mice, and other peripherals to maximize your workspace. Compatible with Tablets The adjustable anti-slip holders also allow functionality for tablets and other handheld devices.