The 5 Best PCI Express Serial Port cards (2023 reviews)

pci express serial port cards
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It is important to have the well suited pci express serial port card. In the following post, we will help you to select the best pci express serial port cards.

Our review process:

Our Top Picks:

Best overall:
Buy: Syba PCI Express Serial Port Card
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Best PCIE Card:
Buy: SIIG PCI Express Serial Port Card
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Best For fixed installations:
Buy: Startech PCI Express Serial Port Card
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Best With Windows:
Buy: Eliater PCI Express Serial Port Card
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Best For retro Pcs:
Buy: Linkstek PCI Express Serial Port Card
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Best overall: Syba PCI Express Serial Port Card

Syba PCI Express Serial Port Card
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Compared with other card in this category, the syba pci express serial port card has a design with broader appeal. 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 provides two serial ports for modern pc with a pcie slot on the motherboard. It can be used as input or output. It does work in linux for both grub-efi and grub-pc if all you want is a serial port.

This card installs with absolutely no fuss, and works without raising a ripple. It is easy to configure/test locally at ubuntu using "minicom" application. It is great for ham radio hookup. It is compatible with industrial standard 16c550 uart.

Why We Like This:
  • Db9 dual port serial card for pcie bus
  • Installation and configuration is straight forward
  • Good investment for long term

Best PCIE Card: SIIG PCI Express Serial Port Card

SIIG PCI Express Serial Port Card
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It is a very cost effective move, much cheaper than needing to buy new laser printers. This PCI card installs easily and setup is a "breeze. It is a high performance adapter card to add two rs. It comes as a full-height card, but includes brackets that can be swapped in (with a screwdriver) to reduce this 1 full height card down to 2 half height (low profile) slots. This will support half-height (otherwise known as low profile) card slots. It is easy to find parallel/serial port cards that work with win.

Why We Like This:
  • Comes with adapter cables for either one
  • Worked well and set up easily
  • Flawless alternative for modern pcie/ system boards
  • Easy to setup in windows 10, no problems with after several months

Best For fixed installations: Startech PCI Express Serial Port Card

Startech PCI Express Serial Port Card
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The startech pci express serial port card should be able to handle its purpose and duties with ease. The CPI express rs232 serial adapter card is compatible with a broad range of operating systems, including windows 2000 / xp/2003 / vista / windows 7 / server 2008 r2 ( 32 and 64 bit ), linux kernel 2.6.11 to 4.11.x. It includes an optional full profile bracket.

The card is constructed using a native single chip design that lets you harness the full capability offered by pci express (pcie), while reducing the load applied to the cpu by as much as 48% over conventional bridge chip serial cards. The device is very high quality and meets the specifications. It does need to be connected to a Molex power socket, and installation and configuration is a breeze. This is great for fixed installations.

StarTech's quality of build is clear in the unit, and installation and configuration is a breeze.

Why We Like This:
  • A completely standard pci serial adapter
  • Ships with a low profile/half-height bracket installed but includes an optional full profile bracket
  • Native single-chip, single lane pci express
  • High quality configurable com port card

Best With Windows: Eliater PCI Express Serial Port Card

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

Why We Like This:
  • 2 x 16c550 fast uart serial ports, supporting data transfer rates up to 230400bps
  • Simple and easy to hook up
  • One of the new comers and featured product

Best For retro Pcs: Linkstek PCI Express Serial Port Card

Linkstek PCI Express Serial Port Card
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Best part: linkstek pci express serial port card costs comparatively low and it is available to ship in 24 hours. 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. The low profile bracket in the package, will work on slim PCs. It is compatible with ieee 1284 standard db25 pin parallel lpt port. 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
  • New and hot release