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Green PCIe x1 card with two silver DB9 ports and a metal bracket

SMUGDESK

SMUGDESK PCIe 2-Port RS232 Serial Adapter Card with DB9 Ports

SKU CH-B8DS-5AENM

Adds two DB9 RS232 COM ports via PCIe for POS, PLC and industrial monitoring devices

  • Adds two DB9 COM ports for POS and PLC devices
  • Standard PCIe x1 card fits x1/x4/x8/x16 slots
  • Mature controller chip delivers steady serial communication
  • Compact design suits desktop and industrial control hosts
  • Works with Windows and Linux for plug-and-play setup

Two-port RS232 expansion card

This PCIe x1 adapter adds two independent DB9 COM ports to a desktop or industrial PC. It connects POS terminals, PLC controllers and monitoring equipment that still rely on legacy serial links. A mature controller chip provides steady data transmission in demanding environments. The board fits any standard PCIe x1, x4, x8 or x16 slot.

Suits users with legacy serial gear

Ideal for technicians maintaining industrial automation, retail or laboratory systems that require extra RS232 ports. Not suited for buyers who need more than two serial channels or different signalling standards. Not suited for builds that lack a free PCIe slot of any width. Not suited for applications requiring USB or Ethernet connectivity instead.

Two DB9 ports on PCIe x1

The single specification that decides fit is the dual DB9 RS232 interface delivered through a standard PCIe x1 connector. Each port operates independently for simultaneous device connections. Windows and Linux support enables plug-and-play installation without extra drivers. This makes the card a direct solution for systems short on native serial ports.

How it compares

Measured against everything we stock in Interface & Card Adapters, at today’s prices. Recalculated every night.

Price $30.99
Pricier than about 74% of the 354 comparable items (median $21.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How many RS232 COM ports does the card add to my system?

The adapter provides two independent DB9 COM ports for connecting serial devices such as PLCs or POS equipment.

What is the maximum data rate supported by each serial port?

Each port operates at the standard RS232 rate of 232 kbit/s for reliable industrial communication.

Which slot type on the motherboard is required to install this card?

A standard PCIe x1 slot is needed, and the card also fits x4, x8 or x16 slots.

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