Mac OS X Server v10.6 Snow Leopard - Unlimited Client License Designed to handle the most demanding server operations, Snow Leopard Server is up to twice as fast as its predecessor, Snow Leopard Server is designed so people of all technical levels can easily manage servers, Allow users to exchange files, synchronize contact information/calendars, schedule events, Deploy the server that's right for you, without the need for expensive hardware: use an Xserve, a Mac Pro, an iMac, or even a Mac mini Enhanced core technologies include 64-bit computing, an advanced networking architecture, Standards-based directory and authentication services, advanced security systems, Xgrid and more, send secure instant messages, Conduct live video conferences, send/receive email, contribute to wikis, publish blogs, produce podcasts, set up websites and more Provides advanced features so you can have total control over your network Faster performance for operations such as file sharing, mail, and web hosting