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StarTech 1-Port USB to RS-422/RS-485 Serial Adapter with Isolation (Black)

Usually ships in 7-10 business days

Availability Details

This is a Special order item. Est. arrival at B&H is 7-10 business days (subject to availability). Your order will be charged at time of shipment.
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Shipping Charges Apply
You Pay: $85.95
Product Highlights
  • USB Powered
  • RS-422 and RS-485 Serial Interface
  • RS-485 Mode Supports ATTA
  • Compatible with USB 2.0 and 1.1
  • Baud Rate up to 921.6 Kbps
  • Isolation and Surge Protection
  • RoHS Compliant

The black 1-Port USB to RS-422/RS-485 Serial Adapter with Isolation from StarTech adds an RS-422/485 serial port to your laptop or desktop computer through USB. The adapter allows connection with any RS-422 or RS-485 serial device through the provided DB-9 port or hard-wired to the terminal block. The USB to serial adapter features circuit isolation to ensure that sensitive controls and devices will not be damaged while connected, making it a viable solution for connecting costly industrial serial devices.

The RS-422/485 converter receives full power through the host USB connection, and provides power to the attached serial device without requiring an external power adapter. Designed to provide a durable serial solution, the USB to RS-422/485 converter is ruggedly constructed and can be mounted nearly anywhere.

Supports RS-422 and RS-485 serial interfaces via DB9 or terminal block connections for versatile connection options
RS-485 mode supports Auto Transceiver Turn Around (ATTA)
Circuit isolation provides electrical protection for sensitive and expensive industrial equipment
The rugged, USB bus powered enclosure requires no external power adapter for simple integration into harsh industrial environments
The adapter provides one RS-422/485 port while powering the device through USB
The adapter is compatible with both USB 2.0 and USB 1.1
The adapter features optical isolation and surge protection
It supports 4-wire RS-422 and 2-wire RS-485 applications
Applications: PoS (credit/debit card readers, receipt printers, bar code scanners, cash registers, scales)
Manufacturing (CNC machinery, process control equipment, bar code scanners, serial printers)
Hotel Front Desk (serial printers, bar code scanners, keyboard, mouse, receipt printer, credit/debit card reader)
Hospitality/Restaurant (credit card/debit card reader, serial printers)
Hospital (monitoring equipment, nurses' stations)
Security (UPS control, access key panels, video cameras, card readers)
Interface Serial
Port Style External Hub
Port 1
Bus Type USB 2.0
Chipset ID FTDI - FT232RL
Connector Type 1 - USB B (4-pin) female
External Ports 1 - DB-9 (9-pin; D-Sub) male
1 - Terminal Block (5 wire)
Serial Protocol RS-422/485
Max Baud Rate 921.6 Kb/s
Data Bits 7, 8
FIFO Buffer 256 bytes
Parity Even, Odd, Mark, Space, None
Stop Bits 1, 2
Isolation 2500 Vrms
Surge Protection 500 W
OS Compatibility Windows 8 (32/64 bit), 7 (32/64), Vista (32/64), XP (32/64),
XP Embedded, CE 6.0/5.0/4.2, 2000, ME, 98SE, 95, DOS
Windows Server 2008 R2, 2003(32/64)
Mac OS 8.x, 9.x, 10.x (Tested up to 10.8)
Power Adapter USB-Powered
Input Voltage 5 DC
Input Current 200 mA
Humidity 5 to 95% RH
Operating Temperature 32 to 131°F (0 to 55°C)
Storage Temperature -4 to 185°F (-20 to 85°C)
Physical Characteristics
Cable Length 6' (1.8 m)
Enclosure Steel
Dimensions (L x W x D) 4.6 x 2.5 x 0.9" (116 x 63 x 22.8 mm)
Weight 6.4 oz (181.4 g)
StarTech 1-Port USB to RS-422/RS-485 Serial Adapter with Isolation (Black)
  • 6' (1.8 m) USB A to B Cable
  • Driver CD
  • 2-Year Warranty
  • See any errors on this page? Let us know.