StarTech 2-Port PCIe to RS232 DB9 Serial Card 21050PCSERIALCARD

The StarTech 21050PCSERIALCARD is a two-port PCIe card that adds RS-232 DB9 serial connectivity to a desktop or small-form-factor PC, making it suitable for users who need to connect legacy serial peripherals such as POS, security, or A/V equipment.

Recommended For

• IT and maintenance teams keeping RS-232 equipment in service—such as POS, security, or A/V systems—on a desktop or small-form-factor PC with an available PCIe slot.
• Logistics, freight, or manufacturing operators who need two RS-232 connections from one PC to communicate with existing serial equipment.
• Windows or Linux desktop users whose serial devices or applications need two DB9 RS-232 ports added internally, rather than through a USB adapter.
• Small-form-factor PC builders who need RS-232 connectivity and a low-profile bracket option for the computer case.

Real-World Use Scenarios

• A business keeps a legacy RS-232 device in service while upgrading its desktop PC; the card provides two DB9 connections, so the old device can remain in the workflow if its software and serial settings are compatible.
• A checkout workstation connects serial peripherals such as a receipt printer, barcode scanner, or scale; the card gives the PC RS-232 ports for continuing to use compatible existing equipment.
• A manufacturing or logistics PC communicates with an RS-232 PLC or other control equipment; the card adds a direct serial connection for compatible setup or data-transfer workflows.
• A security workstation connects to compatible serial access-control equipment or cameras; the added ports let the PC communicate with those devices without replacing them solely to gain a serial connection.
• A lab or clinical workstation connects to a compatible RS-232 instrument or medical device; the card provides a wired serial link for the device’s supported software and data workflow.

Spec Summary