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(Replaced by SSU2-100)
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  1 port USB to RS-232 serial adapter

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US Prices
CDN Prices

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  • 1, 2, 4, 8 or 16 independent ports
  • Device enumerates itself as standard RS-232 COM ports
  • Max baud rate 460.8k bps
  • Full modem control and hardware and software flow control
  • Surge suppression available
  • Bus powered, no external power required
  • Windows 98/Me/NT/2000/XP, Linux, OS/2 and Sun Ray Server support
  • Embedded (board-level) solutions available for custom enclosures  
  • 5 year warranty



Quatech USB to RS-232 serial adapters are easily configured to enable the continued use of legacy devices without making any changes to the applications written for them. The adapters enumerate themselves as standard COM ports making the USB interface completely transparent to software.

Implementing RS-232 serial devices via USB provides many advantages. It enables "plug & play" capability as well as hot-swapping. And, while in standard systems each RS-232 device requires a separate port on the PC, with Quatech adapters a single USB port can be used to implement 8 serial devices. In addition, Quatech USB to serial adapters contain deep data FIFOs and use an accelerated UART clock frequency to further boost data rates. A single port on the adapter can typically achieve up to 460.8kbps.

NOTE: New look, same Quatech quality and performance. We’ve updated the USB Serial Adapters to a black finish and a more modern, stackable form factor, but rest assured that you will experience the same Quatech quality and performance as always. The installation software and drivers are completely backwards-compatible with older models, and, as such, they are certified plug-in replacements for Quatech USB Serial Adapters already deployed.

USA Office

Address: 1480 Gulf Road, Suite 837,
PO Box 1280
Point Roberts, WA 98281

Western Canada - Vancouver BC

Tel:1.800.663.6001 or 1.604.925.6150
Address: 2454 Haywood Ave
West Vancouver, BC V7V 1Y1

Eastern Canada - Markham, Ontario

Tel:1.800.465.0164 or 1.905.513.7027
Address: 3075 14th Ave, Unit 219,
Markham, Ontario L3R 0G9