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Serial Cards & Adapters

If you're looking for a simple, cost-effective way to connect serial devices in your industrial application or server room, our Serial Cards and Adapters make it easy to add Serial ports (RS-232, RS-422, RS-485 etc.) to your computer through common expansion ports such as PCI and PCI Express, as well as through USB.
1 to 10 of 63 Results
2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Dual Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux
$62.99
2631+ In stock In stock
US: 2258 | CA: 373
In stock Learn More
4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows, macOS, Linux
$120.99
189+ In stock In stock
US: 182 | CA: 7
In stock Learn More
4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux
$120.99
460+ In stock In stock
US: 383 | CA: 77
In stock Learn More
8-Port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Card - 16C1050 UART - Low Profile Serial DB9 Controller/Expansion Card - 15kV ESD Protection - Windows/Linux
$213.99
18+ In stock In stock
US: 8 | CA: 10
In stock Learn More
2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows, macOS, Linux
$62.99
189+ In stock In stock
US: 110 | CA: 79
In stock Learn More
1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows, macOS, Linux
$58.99
2425+ In stock In stock
US: 2226 | CA: 199
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8 Port Serial Hub USB to RS232/RS485/RS422 Adapter - Industrial USB 2.0 to DB9 Serial Converter Hub - IP30 Rated - Din Rail Mountable Metal Serial Hub - 15kV ESD Protection
ICUSB234858I
8 Port Serial Hub USB to RS232/RS485/RS422 Adapter - Industrial USB 2.0 to DB9 Serial Converter Hub - IP30 Rated - Din Rail Mountable Metal Serial Hub - 15kV ESD Protection

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

$376.99
57+ In stock In stock
US: 46 | CA: 11
In stock Learn More
4 Port Serial Hub USB to RS232/RS485/RS422 Adapter - Industrial USB 2.0 to DB9 Serial Converter Hub - IP30 Rated - Din Rail Mountable Metal Serial Hub - 15kV ESD Protection
ICUSB234854I
4 Port Serial Hub USB to RS232/RS485/RS422 Adapter - Industrial USB 2.0 to DB9 Serial Converter Hub - IP30 Rated - Din Rail Mountable Metal Serial Hub - 15kV ESD Protection

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

$253.99
58+ In stock In stock
US: 23 | CA: 35
In stock Learn More
USB-C to Serial Adapter
ICUSB232C
USB-C to Serial Adapter

Connect an RS232 (DB9) peripheral to your USB-C device

$25.99
1446+ In stock In stock
US: 1390 | CA: 56
In stock Learn More
USB-C to Serial Adapter with COM Retention
ICUSB232PROC
USB-C to Serial Adapter with COM Retention

Add a serial port with this USB C to serial with COM port retention

$32.99
1227+ In stock In stock
US: 1190 | CA: 37
In stock Learn More
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