Seconds not minutes, minutes not hours, hours not days!

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Ultra-Fast Alternative to FTP

Fast Internet Transport (FIT)™ is a file transfer acceleration technology developed by Data 21. It improves file transfer performance by overcoming latency and unstable connections when transferring files over long distances.

ZIP/390 MP High-Speed File Transfer is a lightweight ultra-fast alternative to FTP, SFTP, FTPS, and other speed challenged file transfer applications.

If your company is experiencing long running file transfers, complete this form to recieve email updates on the capabilities and availability of the FIT solution.


Technical Support is provided for customers on maintenance and companies actively evaluating a solution. The Data 21 Support Team is available to answer questions during regular business hours. Web support applications (Online Documentation, Emergency Keys, etc.) are available 24 hours, 7 days a week.

Regular Hours | M-F 8am - 6pm EST

For support issues please send an email to If you have a Job failure, please include the Job (JCL and SYSIN Parameters) as well as the SYSPRINT output in the email body or as a ".txt" attachment. If you wish to speak to our tech support team by phone, please indicate that in the email along with a phone number and best time to call, or call 424-271-8158 after sending the email.

After Hours Emergency

For assistance with a production emergency after Data 21's Regular Hours, please start by sending email to Please include the Job (JCL and SYSIN Parameters) as well as the SYSPRINT output in the email body or as a ".txt." attachment. For support issues of an immediate critical nature, that cannot wait until the next business day, call 805-748-4489 after sending the email.

Product License Keys, Documentation and Downloads

Support Portal

40 years of Mainframe Solutions

About Data 21

Data 21 Inc. is a privately held veteran owned California Corporation. Since inception in 1980, our mission has been, and continues to be, delivering innovative, high quality, cost effective mainframe centric software solutions that empower Business' and enrich End-Users in the workplace. We pride ourselves on excellent product and customer support satisfaction ratings, and the fact that our products have become trusted integral daily production necessities at hundreds of mainframe installations around the world.