CommStudio

CommStudio is very fast: Smart design and highly-optimized code make CommStudio up to four times faster than regular .NET SerialPort and SerialStream classes.
Performance affects more than just the speed of your application.

It impacts the overall system load, power usage, and battery life.
Higher performance also results in increased scalability. Many CommStudio developers have deployed application that service hundreds of serial ports on a single system.
The entire CommStudio assembly is less than 250K of highly optimized managed C# code, including all serial port, file transfer, and barcode classes.