Wifi means "wireless fidelity" - i.e. wireless computer networking, also known by the international standard reference IEEE802.11. With a wifi dongle or wifi PCI card you can quickly set up all the computers in your house to share one internet connection, without worrying about cables or complex network setup.
If you are interested in wifi accessories for your dropship / wholesale catalog, you should also check out Computer Accessories, USB, and Bluetooth Dongles.
When importing wifi products, don't worry about compatibility - the wireless transmission format is standard and will work everywhere in the world. Also, no power adapters are required for any of these wifi products, making them lighter to send by express air courier.