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StarTech 4 Port Serial Hub Adapter USB to RS232/RS485/RS422 Converter
SKU# AC23804, Model# ICUSB234854I


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SKU # AC23804 | Model # ICUSB234854I | Brand StarTech

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Rugged industrial sub to serial converter w/ 15kV ESD surge protection (level 4) IP30 rating and locking connectors (all ports) - Each port on the metal 4 port serial hub can be set to RS232/RS422/RS485(2wire/4wire) at baud rates up to 921.6Kbps - Desk/wall/DIN rail mountable - Incl. 6' locking USB cable - Power using incl. locking power adapter (12V) or USB (5V) DB9 male serial ports (pin9) can be individually set to 5V/12V/0V - Supports current/legacy Windows/Linux/macOS + embedded platform

Manufacturer Warranty: 2 Years Limited Warranty
Manufacturer Contact Info: http://www.StarTech.com.au,

Add four 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 four 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 ICUSB234854I is backed by a StarTech.com 2-year warranty and free lifetime technical support.

External PortsDB-9 (9 pin, D-Sub) Male
USB Type-B (4 pin) USB 2.0 Female
Humidity5~95% RH
Operating Temperature0°C to 55°C (32°F to 131°F)
Storage Temperature-20°C to 85°C (-4°F to 185°F)
Bus TypeUSB 2.0
Chipset IDFTDI - FT4232H
Port StyleExternal Hub
LED IndicatorsPort receive
Port send
Sets of 4 - port mode
Packaging Information
Package Height55 mm [2.2 in]
Package Length240 mm [9.4 in]
Package Width165 mm [6.5 in]
Shipping (Package) Weight598 g [21.1 oz]
Buffer Size2 KB
Data Bits7, 8
Max Baud Rate921.6 Kbps
Maximum Data Transfer Rate921.6 Kbps
ParityOdd, Even, Mark, Space, None
Serial ProtocolRS-232/422/485
Stop Bits1, 2
Surge Protection15 kV ESD Surge Protection
Physical Characteristics
Enclosure TypeSteel
Product Height25 mm [1 in]
Product Length128 mm [5 in]
Product Width116 mm [4.6 in]
Weight of Product382 g [13.5 oz]
OS CompatibilityWindows® 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.9 to 10.14
Linux 2.4.x to 4.11.x LTS Versions only
What's in the Box
Included in Package6 ft. [2 m] USB-B with screw lock to USB-A cable
DIN rail kit
instruction manual
USB serial hub

SKU # AC23804 | Model # ICUSB234854I

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