This specific set of files facilitates communication between the computer’s operating system and a particular serial adapter manufactured by Keyspan, model number USA-19HS. Without this intermediary, the computer cannot properly recognize and utilize the functionality of the adapter, preventing the connection and transfer of data between devices using serial interfaces, such as older modems, scientific instruments, or legacy point-of-sale systems.
The availability and correct installation of this component are crucial for maintaining compatibility with older hardware that relies on serial communication. Its proper function enables the continued use of legacy devices, extending their lifespan and avoiding the need for costly replacements. Historically, Keyspan adapters were valued for their reliability and performance, making this software an important element in supporting a wide range of professional and personal applications where serial connectivity was essential.