Review on ✨ StarTech Com Black RS232 Serial Modem: High-Performance Industrial Electrical Solution by William Dean

Use with a pair of TRENDnet USB to Serial Converters, Connect an RS-232 serial device to a USB port, Easy Installation, Universal Plug and Play, TU-S9 -Added adapter and a tester , GGLABS Mini RS-232 DB9 monitor and adapter. Good setup for testing PPP connections between Linux systems. Just don't ask why I need PPP connections ;) Also handy for connecting to DB-9 serial consoles. I like to use a cable, tester and USB serial adapter for this because I can see which signals are active. I overclocked it to 115.2k - I don't remember the speed but it was about 4x faster. Zero errors using Kermit to move a 2MB file.