Are you trying to find computer serial port cards among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling computer serial port cards on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 20 hours of research and did 57 computer serial port cards tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best computer serial port cards you can buy today
- This card capability allow for upgrade with additional serial cards to your computer easily. Note: Open the "CH38XDRV"file in the CD to install.
- 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.
- Compliant with ExpressCard/34mm Standard; Compatible to 1-Lane (x1) PCI-Express Throughput.
- Operating System: Windows 32bit 2000/XP/2003 Server/Vista and 64bit XP/2003 Server/Vista/WIN7/WIN8/WIN10/WIN11/Linux. (If there was any problem with PCIE 2 port serial expansion card, pls feel free to contact us, we will provide a solution within 24hrs.)
- 2 PORT PCI RS232 SERIAL ADAPTER CARD: Controller card w/ 16C550 UART based on ASIX MCS9865, 2x DB9 ports w/bi-directional RS232 speeds up to 115.2Kbps/port, 256 byte FIFO buffer & 9th data bit | Upgraded version of our popular cards PCI2S550_LP & PCI2S550
- TECH SPECS: Speeds up to 115.2Kbps | 16C550 UART | 256 byte FIFO buffer | 5,6,7,8 and 9 bit character | Even, Odd, No, Space or Mark Parity | Auto IRQ & IO assignment | Supports IRQ Sharing | ASIX MCS9865 Chip
- VERSATILE APPLICATIONS: Dual Serial Port PCI Card for PCI desktops/servers used in point of sale terminals, PLCs, CNC Machines, control/automation in factories, scientific sensors, medical equipment, scanners, oscilloscope
- STANDARD PROFILE & LOW PROFILE BRACKET: PCI multiport serial COM card installs using 1x standard bracket (pre-installed) or 2x low profile brackets (incl); Supports Windows 7 and up, Linux 2.6.x to 5.x
- Chip: Adopt WCH382 new chip, good compatibility, RS232 serial port interface.
- High Speed: PCI‑Express rate 2.5Gb/s, full duplex channel, support plug and play.
- Support: Support MODEM modem for CTS, for , RI, DCD, DTR, RTS, RS232 level conversion.
- Easy to Use: It can meet the needs of a parallel device and a serial device at the same time, which is convenient and easy to use.
- Compatible System: For Windows98/98SE/ME/2000/xp/server 2003/xp 64bit/Vista/win7/2008, for Linux, for OS.
- It is easy to allow more serial and parallel devices to be connected to your computer.
- Two 9-pin RS-232 DB9 external serial ports and one 25 external parallel LPT port.
- Complies with PCI Express Specification Revision 1.1.
- WCH382 master chip, stable and powerful.
- PCI Express single lane (x1) bus bandwidth 2.5 Gbps.
- 1 PORT SERIAL CARD: Serial controller card w/ 16950 UART based on ASIX AX99100, allows 1x DB9 port w/bi-directional RS232 speeds up to 921.6Kbps per port, available 256 byte FIFO buffer & 9th data bit; Upgraded version of our popular card PEX1S952LP
- OPTIONAL CONFIGURABLE POWER: PCI Express RS232 serial adapter card provides choice of 12v, 5v, or none through pin 9 w/up to 2A total
- STANDARD PROFILE & LOW PROFILE BRACKET: PCIe serial card comes w/ a low profile bracket pre-installed & 1x full profile bracket is incl for versatile install; Supports Windows & Linux
- VERSATILE APPLICATIONS: For low/standard profile desktop/servers w/ uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanner, oscilloscope
- THE IT PRO'S CHOICE: Designed and built for IT Professionals, this PCIe serial adapter card is backed for life, including free lifetime 24/5 multi-lingual technical assistance
- Easily Add 2 Serial Ports and 1 Parallel Port To Any Computer
- Add one IEEE 1284 Parallel Port on system
- Supports 2 x UART Serial Ports
- All 3 Ports Uses 1 PCI Slot
- 4-PORT PCIE SERIAL CARD: On-board DIP switches allow each DB9 serial port to operate in its own independent mode, enabling the connection of RS-232, RS-422, and RS-485 devices; LED indicators to monitor data transmit/receive status
- CONFIGURABLE POWER: Quad-Port PCI Express Serial Adapter Card features configurable power of 12V (1.5A per port), 5V (1.5A per port), or no power (RI) over pin 9 via auxiliary SATA power; Per-Port power modes are individually configurable via jumpers
- APPLICATIONS: Ideal for desktops and servers, with a wide range of uses such as point-of-sale terminals, PLCs, factory control and automation, scientific sensors, medical equipment, scanners, and oscilloscopes; DB9 ports work with screw-locking cables
- STANDARD & LOW PROFILE BRACKETS: TAA-Compliant Serial Card is equipped with two standard profile brackets (pre-installed), and includes four low-profile brackets for compatibility with small form factor desktops/servers
- TECH SPECS: Asix AX99100 Chipset; 16C450 and 16C550 UART compatible; 4x 9-Pin D-Sub Ports; Max Baud 921.6Kbps per port; 256 Byte FIFO; COM Retention; Supports Windows and Linux; Odd/Even/Mark/Space/None Parity Modes; 5/6/7/8/9 Data Bits; PCIe 2.0 x1
- Compliant with PCI 2.1 specification, support 32-bit PCI bus. Plug and play, automatic allocation of IRQ and I / O address.
- One host can support multiple multi-serial card. Data bit: 4, 5, 6, 7, 8 bytes.
- Parity bit : NONE EVEN OLD SPACE MARK. Stop bit : 1, 1.5, 2.
- control: None, hardware, Xon / Xoff. Support WINDOWS 2000/2003 / XP operating system.
- The maximum data transfer rate is up to 1M / S. RoHS compliant.
- Fully Compliant with PCI-e Base Specification, Revision 1.0a
- PCI-e Multi Function Peripheral Controller with x1 Lane Interface
- Support for D1, D2, D3hot and D3cold
- Utilizes 100-Mhz Differential PCI-e Common Reference Clock
- Supports PCI-e Power Management
- Does not support Remap on I/O Address & IRQ
- Form Factor: Low-profile
- Fully Compliant with PCI-e Base Specification, Revision 1.0a
- Support for D1, D2, D3hot and D3cold
- Utilizes 100-Mhz Differential PCI-e Common Reference Clock
- Custom BAUD Rates Supported with External Clock or by Programming Internal PLL
- 5, 6, 7, 8 and 9-bit Serial Format Support
- Support MODEM Signals CTS, DSR, RI, DCD, the DTR, RTS, Convert RS232 Level
- Adds 2 DB9 serial ports to your PCI computer or server or replaces existing DB9 ports
- Each port supports data transfer rates up to 115.2 kbps
- Compatible with Universal 3.3V and 5V 32-bit PCI/pci-x slots
- Works with Windows and Linux
- 1-Year Limited Warranty
How to choose a good computer serial port cards
Does the idea of finding a fantastic computer serial port cards make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in computer serial port cards. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top computer serial port cards products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top computer serial port cards on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top computer serial port cards brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top computer serial port cards based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the computer serial port cards were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good computer serial port cards, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your computer serial port cards.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting computer serial port cards for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our computer serial port cards. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what computer serial port cards should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on computer serial port cards.
