Sabrent USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC1K) | SBT-USC1K
Sabrent USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable (CB-FTDI) | CB-FTDI
StarTech ICUSB234858I USB to RS-232/422/485 Serial Adapter - 8 Port - Industrial - 15 kV ESD Protection - USB to Serial Adapter - USB to Serial Hub - Newegg.com
Economical, RS-232 to USB Interface Converter
1M USB to RS-232 Converter - UC232A1, ATEN USB Converters | ATEN U.S.A.
Sabrent USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter 1 ft Cable (CB-RS232) | CB-RS232
Sabrent 6FT USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC6K) | SBT-USC6K
RS-485 to USB Converter | Instrumart
IOGEAR - GUC232A - USB to Serial Adapter
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable Black NS-PU99501 - Best Buy
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters
C2G 1.5ft USB to DB9 Serial Cable - RS232 Adapter Cable - Serial adapter - USB - RS-232 - blue | Dell USA
Fluke USB to RS-232 Cable Adapter | Instrumart
PRO Single Port USB to Serial Adapter with Activity LED 3ft
1M USB to RS-232 Converter - UC232A1, ATEN USB Converters | ATEN U.S.A.
TRENDnet TU-S9 - serial adapter - USB - RS-232 - TU-S9 - -