All-In-One Monitor Riser is a great addition to your office or home. Designed to raise any monitor to a comfortable ergonomic height, the durable wood construction holds up to 50 lb. The innovative design combines speakers, USB hub, SD card reader, headphone jacks, Apple docking station, and a convenient shelf into one compact accessory. The four USB 2.0 ports (three on front and two on back) can be used to connect and charge smart phones, flash drives, tablets, e-readers, and external hard drives. Audio port lets you play music directly from your MP3 player or other device. Two speakers with independent volume control provide superb sound quality. Two auxiliary inputs connect any additional music devices to the monitor riser to listen with the speakers. SD Card Reader lets you connect and transfer music, videos, pictures and other files on your SD card. Monitor riser includes power and USB cords.