BiXPower X75 Dongle Connector Converter - 7.4 X 5.08mm Female to 5.5 x 2.5mm Male Connector with 16AWG Wires This connector converts Dell or HP/Compaq Round Shape power connector with 7.4mm outside diameter to a 5.5 x 2.5mm male barrel connector. You may use this X75 connector with BiXPower's other C series connectors to convert the 5.5x2.5mm connector to many different connectors for many different computers. One end is a 7.4 x 5.08mm female jack, and the other end is a 5.5x2.5mm male connector. The cable between two ends is made with high quality 16AWG wires. Total length from end to end is around 190mm (or 7.5 in) Caution: This adapter will not change the voltage. The output voltage will be same as input voltage. Please make sure the voltage is correct for your application when using this adapter. The 5.5 x 2.5mm connector maximum continuous current is 6 Amps. So this adapter is for using with 120W or less power adapters. Works for Dell laptop power adapters that have a round shape power connector with center pin and outer diameter of around 7.4mm. Does not work for Dell power adapters that have octagon shaped connectors. Works for HP Compaq laptop power adapters that have round-shaped power connectors with center pin and outside diameter of around 7.4mm. Does not work for HP Compaq power adapters that have smaller connectors without center pin. This converter's female side will only accept round shaped connectors. You can not use this converter if your power adapter connector is not round shaped. Some Dell power adapters have octagon shaped connectors, which will not fit the female side of this converter. The female jack can plug into a Dell or HP power adapter male round shape connector with about 7.4mm outer diameter