The 8 Best DB9 PCI cards (2023 reviews)

Syba makes beautiful and great card with classic and smartly choosen materials. It is compatible with industrial standard 16c550 uart. It is easy to configure/test locally at ubuntu using "minicom" application. It works well and uses native window 7 drivers. It allows interconnecting with similar chips like mcs9900 to expand the peripheral ports. It has the parallel port as part of the card and two serial ports in an additional plate. It is great for ham radio hookup.

The PCI-E card is quite small and will fit into limited spaces such as those tight areas resulting from installation of a big video card. It is compatible with rs232, rs422 & rs485 standards and supports throughput from 50bps to 16mbps.

Why We Like This:

Installation and configuration is straight forward
Db9 dual port serial card for pcie bus
Compact and works well in linux and winxp

Eliater DB9 PCI Card

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This card installs in a new computer using an updated bus and it works perfectly. It is allows for full height or half height applications. This card capability allows for upgrade with additional serial cards to your computer easily. It works with windows 10 and comes with less and less connection options.

Why We Like This:

Multi card capability allow for upgrade with additional serial or parallel cards
Simple and easy to hook up
Plug and play, automatically selects irq & io address, supports irq sharing

Linkstek DB9 PCI Card

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The linkstek db9 pci card's superior materials makes sure that it ages well with use. It is great for retro pcs, better than usb. It is based on asix ax99100 solution that is compatible with most windows and linux systems. It will light up 2x db25 ports on devices on desktop pcs. It is perfect add on for serial connection on your computer. The low profile bracket in the package, will work on slim PCs. It works good and easy to install.

Why We Like This:

Works on intel, amd, arm hardware platform
Will support most of windows and linux systems
Lot of satisfied buyers

Startech Serial Port Card

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This PCI express serial card, with 8-port breakout cable, provides you with multiple ports to connect a wide variety of serial peripherals, at speeds of up to 921.4kbps. The low profile PCIe serial card is the ideal choice for adding serial ports, even when space is at a premium. The PCIe serial card makes it easy to add serial ports to connect your peripherals including printers, scanners, credit/debit card readers, pin pads and modems, industrial controls and more.

The PCIe serial card is designed to fit into small form factor and standard computer cases. It comes with 8 db9 connectors. The card comes pre-configured with a low-profile bracket, and includes two optional full-profile brackets, so installation is easy regardless of the case form factor and standard computer cases.

Why We Like This:

Connect your peripherals with 8 serial ports
232 db9 serial ports to your desktop computer, through a pcie expansion card slots
Broad os support, including for windows and linux
Comes pre-configured with a low-profile bracket, and includes two optional full-profile brackets

DTECH DB9 PCI Card

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The dtech db9 pci card's high-end materials makes sure that it ages well with use. An ideal RS232 serial expansion card for fax modem, GSM modem, printer, barcode reader, cellular phone, PDA, POS machine, GPS, ISDN terminal adapter, satellite receiver, digital camera, radio system, etc.

Why We Like This:

232 db9 serial port for your computer to connect multiple legacy serial devices
Turns a pci expansion slot into 2 rs
Delivers what they promise

Startech DB9 PCI Card

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This card is a direct replacement for PCI2S550_LP and PCI2S550_LP. The dual port pci serial card enables you to interact with serial devices, such as card readers, printers, pin pads, and modems, at speeds of up to 115.2kbps. It can be used in point of sale terminals, plcs, cnc machines, control/automation in factories, scientific sensors, medical equipment, scanners, oscilloscope.

The card comes pre-configured with a full-profile bracket, and includes optional low-profile brackets, so installation is easy regardless of the case form factor.

Why We Like This:

Works in linux mint and windows
Included in package low profile brackets
Delivers what they promise

X-Media DB9 PCI Card

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The x-media db9 pci card should be able to handle its purpose and duties with ease. The XM-Pex-2s dual rs232/serial port pci express (pcie) adapter card is designed to add two 9-pin rs232/serial ports to your pci express enabled desktop computer.

Why We Like This: