With this adapter from Delock, up to four serial devices can be connected via a USB Type-A port.

Specifications

• Connections:

1 x USB 2.0 Type-B socket
4 x Serial RS-422/485 DB9 connectors
1 x 5 V DC power socket

• Chipset: FT4232HL, SP3078EE
• 4 x DIP switches: RS-422/485 mode setting
• Internal header pins: Jumpers to enable/disable terminators
• Serial connector with nuts
• Data transfer rate up to 1 Mbps
• LEDs to indicate TxD / RxD activity
• Automatic detection and switching between RS-422 and RS-485
• ±15 kV ESD protection on all signal pins
• Wall mount integrated into the housing
• Power consumption:

Operation: 143 mA / 715 mW
Standby: approx. 92 mA / 460 mW

• Additional I/O and IRQ are not required
• DC connection for optional power supply
• Operating temperature: 0 °C ~ 70 °C
• Dimensions (LxWxH): approx. 172 x 65 x 23 mm

Power connection specifications

• 5 V, ground outside, positive inside
• Dimensions:

inside: approx. 2.1 mm diameter
outside: approx. 5.5 mm diameter
length: approx. 9.5 mm

System requirements

• Linux Kernel 2.6 or higher
• Windows Server 2012/Server 2012 R2/Server 2016
• Windows Vista/Vista-64/7/7-64/8.1/8.1-64/10/10-64/11
• PC or notebook with a free USB Type-A port

Package contents

• USB 2.0 to 4 x Serial RS-422/485 adapter
• USB 2.0 cable
• 8 x jumpers
• Driver CD
• User manual.