Intelligent USB charge: 4 universal USB charging ports with a maximum output power of 2.4A, each USB port total 3.4A 17W. At 2.4A, charging on these USB ports is faster than conventional USB ports.Safety - Overvoltage, short circuit and increased contact protection, unused sockets are covered with IP20 plug protection.2 m power cord, recessed on/off switch, robust housing: Thanks to the 2 m cable, you can place the socket strip surge protection discreetly and still have plenty of space to connect your devices. The stable housing ensures optimal operation. The large on/off switch can be easily switched on. The housing of the surge protection is very robust and offers protection against fire, bumps and rust, as well as dents and scratches.Absorbs excess energy: The extra large metal oxide varistors (MOVs) built into the power strip absorb excess energy and release heat so your devices do not suffer electrical damage and increase their lifespan.Made by fire-resistant ABS plastic and PVC copper cable, guarantee charging safety and overload protection. -Description:Port: 4 sockets Combo 4 USB.Nominal consumption: 10A, 250V.Rated power: 10A, 250V.Rated power: 2500W.USB output: 5V 3.4A (Auto Max) 17W.Use of ambient temperature: -10°C ~ + 40°C.Flame retardant: 750°C.Safety resistance: 75N.Connector type: EU Standard.Weight: 350 g.Product length: full length 2 m cable.Use:Suitable for all devices / digital products (mobile / Mp3 / Mp4 / Mp5 / USB fan / USB air purifier, etc.), which can be powered via the USB interface of the computer.Applies to most mobile phone charging with rechargeable data cable.USB power supply for USB speakers, USB fans, USB thermal products, etc.Voltage for adapting to a wide range, can be used for AC 100-240V.The charging process is fast, highly efficient, safe and reliable.Easy to transport, easy to use.At the same time you can charge on the tablet PC and mobile phone, over current, over voltage, over temperature protection.