USB to Serial DB9 RS232 Adapters for home, business, or industrial uses in many formats. We offer Single and Multiple port USB to Serial Adapters to accommodate all Serial Communication applications.

  • 12 Inch USB DB-9 Serial High Speed Adapter – FTDI Chipset

    1 Port $19.95 Part No: CG-RS232-F12
  • 12 Inch USB to DB-9 Serial High Speed Adapter with Prolific Chipset

    1 Port $16.99 Part No: CG-RS232-P12
  • 16 Port RS-232 Rack Mountable USB to Serial Adapter

    16 Port $419.95 Part No: USB-16COM-RM
  • 16-Port Industrial RS232 to USB 2.0 Hi-Speed Serial Adapter

    16 Port $299.00 Part No: CG-16COM-MINI
  • 2 Port USB to Serial RS-232 DB-9 Adapter Industrial Metal Housing

    2 Port $89.98 Part No: USB-2COM-M
  • 32 Port RS-232 USB-to-Serial Adapter

    32 Port $599.95 Part No: USB-32COM-RM
  • 36 Inch USB to DB-9 Serial High Speed Adapter with FTDI Chipset

    1 Port $24.99 Part No: CG-RS232-F36
  • 36 Inch USB to DB-9 Serial High Speed Adapter with Prolific Chipset

    1 Port $24.99 Part No: CG-RS232-P36
  • 4 port USB Serial Adapter w/ Isolation and Surge Protection

    4 Port $199.99 Part No: CM-41042
  • 4 Port USB to Serial Adapter RS-232 with FTDI Chip

    4 Port $79.95 Part No: USBG-4FTDI-B
  • 4-Port RS-232 USB to Serial Adapter – Octopus Cable DIN Rail

    4 Port $99.99 Part No: USB2-4COM-M-CBL
  • 4-Port RS-232 USB to Serial Adapter Data Control Box

    4 Port $99.98 Part No: USB-4COM