A-szcxtop(TM) Mini Desk Fan With USB Connection for PC /Notebook (Black) Connect PC, notebook or other USB devices. 100% brand new and high quality mini table electric fan. Ultra-quiet design, strong wind and low power consumption. ON/OFF switch at the back. 4 plastic fanblade, 3.8" diameter round plastic fan. Only powered by USB. Its angle can be adjusted easily upwards or downwards.