Satechi F3 Smart Monitor Stand with Four USB 3.0 Ports and Headphone / Microphone Extension Ports - Compatible with 21.5-Inch iMac, MacBook Pro, MacBook, Dell, PC, Samsung and more (White) ELEVATE YOUR MONITOR - lifts your monitor for an optimal view while working, typing or checking your email. Includes two sets of aluminum legs (2 or 3.1 inches) for your viewing comfort. DURABLE DESIGN - securely holds up to 22 lb monitors, printers or laptops  not recommended for 27 iMacs 4 USB 3.0 PORTS - equipped with 4 USB 3.0 ports for convenient access to your USB devices and provides quick data transfer speeds up to 5Gbps HEADPHONE / MICROPHONE - connect your headset or external microphone to the front of your monitor with its 3.5mm headphone and microphone ports MORE STORAGE - creates more desk storage space under your monitor for your keypad, notes or mouse