Specifications
1.one or two 14cm fan speed adjustable(optional)
2.2 usb ports or 4 usb 2.0 hub or 3 usb 2.0 hub(optional)
3.2.0 speakers (optional)
4.6 degree height adjustment
5.stand 360 degree rotation
6.aluminum material laptop cooling pad with speakers
7.Support 12"-15.6"laptop