The 5 Best RS232 PCI Express cards (2023 reviews)

rs232 pci express cards
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It is important to have the well suited rs232 pci express card. In the following post, we will help you to select the best rs232 pci express cards.

Our review process:

Our Top Picks:

Eliater RS232 PCI Express Card
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SIIG RS232 PCI Express Card
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Linkstek RS232 PCI Express Card
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Startech parallel Port
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Startech RS232 PCI Express Card
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Eliater RS232 PCI Express Card

Eliater RS232 PCI Express Card
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This card installs in a new computer using an updated bus and it works perfectly. It works flawless with the addition of this card. It 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:
  • Simple and easy to hook up
  • 2 x 16c550 fast uart serial ports, supporting data transfer rates up to 230400bps
  • Plug and play, automatically selects irq & io address, supports irq sharing

SIIG RS232 PCI Express Card

SIIG RS232 PCI Express Card
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The siig rs232 pci express card is suitable and reliable and fits well with your daily purpose. It offers a convenient solution for connecting modern or legacy equipment to newer computer systems that do not have rs232 or parallel ports. It is a great solution to connect with pos systems, industrial testing and control devices, security systems, logistic management equipment, vinyl cutter, printers, scanners, and etc. It is a dual-profile design which fits full height and low-profile system chassis with the included spare low-profile brackets. It easily adds one serial port and one parallel port through an available pci express slot.

The pcie serial card can decrease the loading on cpu activity which helps ensure optimal system performance and keep errors from happening. The cutter is serial port interface only, no USB ports. It comes with a standard-profile bracket installed, and also an optional low-profile bracket included in the package.

Why We Like This:
  • Easy to install and works great
  • Single-lane (x1) pci express end-point controller with phy integrated
  • Delivers what they promise

Linkstek RS232 PCI Express Card

Linkstek RS232 PCI Express Card
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The linkstek rs232 pci express card is capable of outshining several other card featured in this list in overall features for the price point. 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:
  • Will support most of windows and linux systems
  • Works on intel, amd, arm hardware platform
  • Good investment for long term

Startech parallel Port

Startech parallel Port
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Compared with other card in this category, the startech parallel port has a convenient design. The Pex2s5531p 2s1p pci express card turns a pci express slot into two rs232 ( db9) serial ports and one parallel port. It is used to control multiple surveillance / security cameras in a parking structure, office building, etc. It comes with data transfer rate up to 1.5 mbps. It is compatible with a broad range of operating systems including windows 2000xp2003vistawindows 7server 2008 r2 (32 and 64-bit), linux kernel 2611 and up, and mac OS 104, this 2 port serial 1 port parallel pci. The Express Card also features an optional low profile/half-height bracket that allows the card to be installed in virtually any computer case, regardless of the case form factor.

Why We Like This:
  • Native single-chip, single lane pci express
  • Configurable in 5v, 12v, and ri (non-powered) modes
  • Automated out-of-band flow control using cts/rts and dsr/dtr
  • Two high speed rs232 serial ports with data transfer rate up to 460.8 kbps

Startech RS232 PCI Express Card

Startech RS232 PCI Express Card
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The startech rs232 pci express card is capable of outshining several other card featured in this list in overall features in its price range. This card will add four ports for you. It includes both low profile/half-height and full profile brackets to ensure fitment into a broad range of system form factors. It allows the addition of multiple serial ports through a single pci express slot. It works with setup file additionally it is easy to install and it works.

The board is a bit long, but it fits in half height (full height bracket included) systems, and the PCIe demands are modest. It is great to add on card if your computer does not come with a serial port. It is perfect easy to configure hardware for connecting to your older tech.

Why We Like This:
  • Monitor and control industrial machines on an assembly line or in a production environment
  • Supports 2-wire / 4-wire rs485 modes
  • Rs232 data transfer rates up to 460 kbps
  • A wonderful device for connecting newer pc's to older hardware