Makes your network run much faster. It supports Ethernet, Fast Ethernet, FDDI, ATM, and certain wide area networks. Install it on Macintosh workstations (clients) and AppleShare servers to accelerate the performance of file transfers between them. NetDoubler also accelerates networking between Macintosh workstations running Personal File Sharing. NetDoubler is totally transparent to the user. Once installed and set up, you continue to use your Mac in a normal manner. You do not need to run any special application, or drag files to special desktop icons.