Come with Off/On switch and reserved a widely spaced outlet to plug desk electronic accessories large plugs. Don't need to punch holes in the table. 1200J surge protector to absorb excess current to protect sensitive devices. Offer different cable lengths for different needs. Made of ABS and fireproof material, short-circuit, grounded, overload, over- voltage protection safety system. Please check whether each port is working properly before use. Say goodbye to annoying bending over to the floor looking for a spare close enough outlet.