8-Port Industrial USB to RS-232/422/485 Serial
Adapter - 15 kV ESD Protection
Product ID: ICUSB234858I
Add extra COM ports to your laptop or desktop computer, quickly and easily. This USB to RS232/422/485
serial adapter lets you connect to your serial devices through an external USB port.
Supports multiple serial protocols
The versatile serial adapter converts a single USB port into eight RS232/RS422/RS485 serial ports,
enabling you to connect, monitor, and control a wide range of serial devices, such as sensors, barcode
scanners, and LED signage. It supports four operating modes, including RS232, RS422, 4-wire and 2-wire
RS485.
www.startech.com
1 800 265 1844
Ideal for harsh environments
With its rugged IP30-rated metal hub housing, the serial adapter is built to meet the extreme demands of
harsh and mission-critical environments. It provides 15 kV ESD protection, which helps to reduce
downtime in industrial environments where communications lines are more prone to noise emissions or
sudden spikes in voltage.
The serial adapter offers flexible mounting options, with a built-in wall-mounting bracket and included DIN
rail mounting kit. It also features a screw-locking host connection plus a screw-locking USB-B connector
on the included USB cable, to prevent accidental disconnections.
Fast data transfers
The serial adapter is equipped with high-speed UARTs, providing fast data rates of up to 921Kbps in
RS232/422/485 operating modes.
The ICUSB234858I is backed by a StarTech.com 2-year warranty and free lifetime technical support.
www.startech.com
1 800 265 1844
Certifications, Reports
and Compatibility
Applications
• Connect your RS232, RS422 and RS485 serial devices through your
computer's USB port for easy access to barcode scanners, receipt
printers and other serial devices
• Connect, monitor and control industrial/automotive sensors and
equipment
• Program LED and digital signage boards with serial communication
ports
• Connect a satellite receiver, serial modem, or PDA with serial sync
Features
• Converts a single USB port into eight RS232/RS422/RS485 serial
ports over USB 2.0 with four modes: RS232, RS422, 4-wire and 2wire RS485
• 15 kV ESD protection (Level 4) against noise emissions and electrical
voltage surges
• DIN rail and wall mountable
• Rugged IP30 rated metal hub housing and screw-locking host
connection, ideal for harsh industrial environments
• Data transfer baud rate up to 921.6Kbps
• Single USB 2.0 hub port (pass-through) for daisy chaining, or for
connecting an additional USB device to the host
• COM port expansion with COM retention
• Self-powered with included external power adapter
www.startech.com
1 800 265 1844
Warranty 2 Years
Hardware Bus Type USB 2.0
Chipset ID FTDI - FT4232H
Genesys Logic - GL825
Interface Serial
Port Style External Hub
Ports 8
Performance Buffer Size 2 KB
Data Bits 7, 8
Max Baud Rate 921.6 Kbps
Maximum Data Transfer Rate 921.6 Kbps
Parity Odd, Even, Mark, Space, None
Serial Protocol RS-232/422/485
Stop Bits 1, 2
Surge Protection 15 kV ESD Surge Protection
Connector(s) External Ports 1 - USB Type-B (4 pin) USB 2.0 Female
8 - DB-9 (9 pin, D-Sub) Male
1 - USB Type-A (4 pin) USB 2.0 Female
Software OS Compatibility Windows® 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.9 to 10.13
Linux 2.4.x to 4.11.x LTS Versions only
Indicators LED Indicators 8 - Sets of 4 - port mode
8 - Port send
8 - Port receive
1 - Power
Power Input Current 1 A
Input Voltage 100 ~ 240 AC
Output Current 3.0 A
Output Voltage 12 DC
Plug Type M
Power Consumption (In Watts) 36 W
Power Source AC Adapter Included
www.startech.com
1 800 265 1844
Environmental Humidity 5~95% RH
Operating Temperature 0°C to 55°C (32°F to 131°F)
Storage Temperature -20°C to 85°C (-4°F to 185°F)
Physical
Characteristics
Color Black
Enclosure Type Steel
Product Height 1 in [25 mm]
Product Length 8.6 in [219 mm]
Product Weight 26.5 oz [750 g]
Product Width 5 in [128 mm]
Packaging
Information
Shipping (Package) Weight 26.8 oz [760 g]
What's in the Box Included in Package 1 - USB serial hub
1 - USB-B with screw lock to USB-A cable
1 - DIN rail kit
1 - universal power adapter (NA/JP, UK, EU, ANZ)
1 - instruction manual
Product appearance and specifications are subject to change without notice.
www.startech.com
1 800 265 1844
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