Converts standard 5.5mm x 2.1mm Round DC Connector to 3 pin DELL type U shape connector as used on some Latitude Inspiron model laptopsSTOCK CODE - NXSimply plug ontothe power tip of any power supply with 2.1mm DC Connector and convert it to use for your Laptop/Netbook - but please remember this will not convert voltage - so the power supply must be of suitable rating for your Laptop etc - this item will only convert the size of the tip.YOU MUST make sure power supply is correct voltage foryour device. This adapter DOES NOT come with anypower supply - It is an adapter tip ONLY.some compatible models (but please check your actual device as within some model ranges there were different sockets fitted)Inspiron 2600 Series, Inspiron 2650 Series, Inspiron 3700 Series, Inspiron 3800 Series, Inspiron 4000 Series, Inspiron 4100 Series, Inspiron 5000 Series, Inspiron 7500 Series, Inspiron 8000 Series, Inspiron 8100 Series, Latitude C500 Series, Latitude C510 Series, Latitude C600 Series, Latitude C610 Series, Latitude C800 Series, Latitude C810 Series, Latitude CP Series, Latitude CPi Series, Latitude CPt Series, Latitude CPx Series, Latitude CPm Series, Latitude CS Series, Latitude CSX Series, Latitude X200 Series, Latitude Xpi Series MPN P2GADPL21.55.DELLU.BL Brand P2G Type Connector Adapter Unit Type Unit