USB to Serial

UTS-401BK-SI UTS-402CK UTS-402CK-SI
Industrial USB To 1-Port RS-422/485 Converter (Locking Feature), w/ Surge & Isolation Industrial 2-Port RS-232/422/485 to USB 2.0 High Speed Converter with Locking Feature Industrial 2-Port RS-232/422/485 to USB 2.0 High Speed Converter with Locking Feature and w/Surge & Isolation
UTS-404A UTS-404A-SI UTS-408AK
Industrial 4-Port RS-232 to USB 2.0 High Speed Converter Industrial 4-Port RS-232 to USB 2.0 High Speed Converter with Surge & Isolation Industrial 8-Port RS-232 to USB 2.0 High Speed Converter with Locking Feature
   
UTS-416AK    
Industrial 16-Port RS-232 to USB 2.0 High Speed Converter with Locking Feature