USB to Serial (RS-232 / RS-422/485)

Cables to Go 268861.5ft USB to DB9 Serial Adapter Cable
$28.99
C2G 268875ft USB to DB9 Male Serial RS232 Adapter Cable
$33.99
C2G 26478USB to 2-Port DB9 Serial RS232 Adapter - Discontinued
$85.99
C2G 224296ft USB to DB25 Serial RS232 Adapter Cable
$43.99
Aten UC232A5PKUSB to Serial Converter, (5-Pack)
$110.00 $86.25
Aten UC23222-Port USB-to -Serial RS-232 Hub
$91.00 $71.35
Aten UC23244-Port USB-to -Serial RS-232 Hub
$79.00 $61.95
Aten UC48522-Port USB-to -Serial RS-422/485 Hub
$114.00 $95.82
IOGEAR GUC232A AdapterIOGEAR USB to PDA/Serial Adapter
$24.95