…I would recommend a BrainBoxes PCI Express card or PCMCIA card. Brainboxes seems to be a forward-thinking company that has very strong driver support across its entire range, including some products more than 10 years old.

Tim Long

I really appreciate the support we have received from Brainboxes for our project, and hope that the business opportunities can continue.

Cummins Inc.

Just to add I have also had issues with USB to RS232 adapters in general. In the end I went with a Brainboxes UC-101 and have had no further problems.
Actually took quite a lot of searching to even find the Brainboxes card since I needed one that supported both Windows 7, and Windows 7 64.


I'm very impressed that you have taken the time to research this problem for me, I expected you to come back with "our box is fine, it's a problem with Kermit95....". Good quality support goes a long way and based on that I would recommend your product to anyone.

I found the ES-357 very easy to use as a pure Telnet Server, it just worked!


I did solve my problem… My solution though came in the form of using the different serial card I mentioned before, a brainboxes PX-310, ...  The freeze has never reoccurred.  …