Add eight ports supporting three serial protocols, to easily connect serial devices to your computer through USB, with 15kV ESD protection

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.

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.

The StarTech.com Advantage


StarTech.com ICUSB234858I. Host interface: USB 2.0, Hub interfaces: Serial. Product color: Black, Housing material: Steel, LED indicators: Power. Power source type: AC, Power consumption (typical): 36 W, Input voltage: 100 - 240 V. Windows operating systems supported: Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10..., Mac operating systems supported: Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High..., Server operating systems supported: Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows.... Width: 5.04" (128 mm), Depth: 8.62" (219 mm), Height: 0.984" (25 mm)

Ports quantity	8
Host interface	USB 2.0
Hub interfaces	Serial
USB 2.0 ports quantity	2
RS-232 ports	8
Product color	Black
Housing material	Steel
Surge protection	Yes
LED indicators	Power
Power source type	AC
Power consumption (typical)	36 W
Input voltage	100 - 240 V
Input current	1 A
Output voltage	12 V
Output current	3 A
Power plug type	Type M
Windows operating systems supported	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 11, Windows 11 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64
Mac operating systems supported	Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.9 Mavericks, Mac OS X 11.0 Big Sur, Mac OS X 12.0 Monterey, Mac OS X 13.0 Ventura
Linux operating systems supported	Yes
Server operating systems supported	Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019
Width	5.04" (128 mm)
Depth	8.62" (219 mm)
Height	0.984" (25 mm)
Weight	24.3 oz (688 g)
Package width	7.48" (190 mm)
Package depth	11.4" (290 mm)
Package height	2.64" (67 mm)
Package weight	3.53 lbs (1.6 kg)
AC adapter included	Yes
Included power plug types	ANZ, EU, UK, US
Cables included	USB
DIN rail kit included	Yes
Operating temperature (T-T)	0 - 55 °C
Storage temperature (T-T)	-20 - 85 °C
Operating relative humidity (H-H)	5 - 95%
Data bits	7, 8
Stop bits	1, 2
Parity bit	Even, Mark, No, Odd, Space
Baud rate	921.6 Kbit/s
Master (outer) case width	16.1" (410 mm)
Master (outer) case length	16.5" (420 mm)
Master (outer) case height	10.8" (275 mm)
Quantity per master (outer) case	14 pc(s)
Harmonized System (HS) code	84719000
Compliance certificates	CE, RoHS
Chipset	FTDI - FT4232H, Genesys Logic - GL825
Sustainability compliance	Yes