UPort 1450I UPort 1000 Series B to 4-port RS-232/422/485 serial hub with 2 kV $727.99 https://www.ebay.com/itm/122524522580?hash=item1c8707d854:g:…
Moxa Uport 1450 4Port Usb-To-Serial Hub Rs-232/422/485 $807.54 New Unit - Original Box might be open - This unit is guarant…
Sealink+16.Ultra Ethernet To 16-Port Rs-232 Rs-422 Rs-485 Serial Server $929.96 An item that has been used previously, fully operational an…
B&B Electronics 3Pciosd2B Rs-422 232 485 Serial Card 2P $870.63 B&R https://www.ebay.com/itm/380362615470?hash=item588f60eaae:g:…