*Free airflow enhances heat dissipating.
*Built-in 4-ports USB v2.0 hub. Transfer rate up to 480 Mbps.
*Fan power switch with blue LED indicator.
*3 built-in fans of 6 x 6 x 1cm powered by USB
*6 ventilation holes.Skidproof.
*Fan speed:3200 rpm
*Noise level: 25 db
*Dimensions: 300 x 230 x 18mm