Weight: 700g Product Dimension: 342*250*20mm (W/D/H) Fan Dimension: 140*140*15mm Fan Speed: 1000±10%RPM Voltage range: 5V Suitable for 14-15.6 laptop to use Iron mesh+plastic material, heat dissipation excellent, with a strong cooling system, make your life everywhere times Comes with built-in USB cable anti-slip and easy to discharge heat Designed with a slot for the USB cable, it can prevent tangling. Convenient and easy to use. Features: Simple andfashionable cool design , ergonomic consideration, let you use the notebookcomputer , the operation to provent damage . A classic of highair inlet design, better heat dissipation effect, let you in the knee or a bedcan also use. Large punchingnet surface, 14cm ultra-quiet frameless fan, play its superior thermal performance.External USB line function, dual power supply interface, more humanized design.Support 17'' and following the mainstream notebook computer.