1.   Although some older modems will be easy to upgrade, others will not.

2.   Both connections were still nearly twice as fast as you can get from older modems.

3.   Some hubs also have their own serial ports or printer ports, allowing you to connect older modems and printers to the high-performance USB system.

4.   The new standard also offers advantages over older modems.

5.   Which means you can save some money and buy an older modem if you intend to use only its fax function for your PC.