This laptop bundle kit includes everything you need while on the go! It's the ideal complement to your laptop to ensure you have the tools you need while on the road. The laptop surge suppressor protects your laptop against damaging power surges while the 7-port hub adds extra USB 2.0 ports to your system. The laptop light ensures you have light to do your computing when you need it most -- on a plane or in a dimly lit presentation. The USB to DB9 serial adapter cable is designed for connections to cellphones, PDAs, digital cameras, modems, or ISDN terminal adapters through your USB port with over 230 kbps data transfer rate. Finally, the USB to PS/2 keyboard/mouse adapter cable connects a PS/2 keyboard/mouse through the USB port on any laptop or computer.