USB2.0/3.0 2 Port / 4 Port to RS-232 Manual or Auto Switch
UMS-202-P / 202-F
2
Port
USB2.0
To RS-232 Manual Switch
UMS-212
 2 Port
USB2.0
To RS-232 Auto Switch
UMS-402-P / 402-F
4
Port
USB2.0 To RS-232 Manual Switch
UMS-412
4
Port
USB2.0
To RS-232
Auto Switch
 Industrial USB2.0  to Fast ports RS-232  (OEM For Custom)

AUM420-F

USB to 2 Port RS-232 & HUB

AUM440-F

USB to 4 Port RS-232 & HUB

AUM480-F

USB to 8 Port RS-232 & HUB

AUM416-F

USB to 16 Port RS-232 & HUB