Designed for the on-the-go IT professional or field technician, the E-Legacy Extender from Dell can be snapped onto your E-Family Laptops through the docking connector and adds little weight to your system. It is ideal for those who still rely on legacy ports (serial port, parallel port, or PS/2 port) regularly. Additionally, the product gives you a comfortable work space. Compatible with the following systems: Lattitude E4200, E4300, E4310, E5400, E5410, E5420, E5430, E5500, E5510, E5520, E5530, E6220, E6230, E6330, E6400 ATG, E6410, E6410 ATG, E6420, E6420 ATG, E6430, E6430 ATG, E6430s, E6500, E6510, E6520, E6530, XT3; Precision M2400, M4400, M4500, M4600, M4700, M6400, M6500, M6600, M6700, and the Vostro A90 V13 Series.