These fast 56K V.90 or 56FLEX technology HSP modems for Windows 95 and 98 have all the ferature you expect from a state of the are technology. Throughput up to 230, 400bps; caller ID, MNP10 for better performance under adverse line and cellular condirions fax broadcasting, scheduling and more. This is a all in one compact unit that is ideal for use in an office or school. The modem delivers non stop performance and value every day.