StarTech 4 Port USB to RS232/RS485/RS422 Serial Adapter Hub

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.

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.

• External Ports: 4 - DB-9 (9 pin, D-Sub), 1 - USB Type-B (4 pin) USB 2.0
• Ports: 4
• Interface: Serial
• Bus Type: USB 2.0
• Port Style: External Hub
• Chipset ID: FTDI - FT4232H
• LED Indicators: 4 - Sets of 4 - port mode; 4 - Port send; 4 - Port receive; 1 - Power
• Maximum Data Transfer Rate: 921.6 Kbps
• Serial Protocol: RS-232/422/485
• Max Baud Rate: 921.6 Kbps
• Data Bits: 7, 8
• Buffer Size: 2 KB
• Parity: Odd, Even, Mark, Space, None
• Stop Bits: 1, 2
• Surge Protection: 15 kV ESD Surge Protection
• MTBF: 262,123 Hours
• Output Voltage: 12V DC
• Output Current: 1A
• Plug Type: M
• Operating Temperature: 0°C to 55°C (32°F to 131°F)
• Storage Temperature: -20°C to 85°C (-4°F to 185°F)
• Humidity: 5~95% RH
• Color: Black
• Material: Steel
• Dimensions (L x W x H): 12.8 x 11.6 x 2.5 cm
• Weight: 382 g

• OS Compatibility: Windows 7, 8, 8.1, 10. 10 ARM, 11, 11 ARM; Windows Server 2008 R2, 2012, 2012 R2, 2016, 2019, 2022; macOS 10.9 to 10.15, 11.0, 12.0, 13.0, 14.0, 15.0; Linux 2.4.x and up - LTS Versions only

• 1 - USB serial hub
• 1 - 6 ft. [2 m] USB-B with screw lock to USB-A cable
• 1 - DIN rail kit
• 1 - instruction manual