Skip to main content
DualSerial 2 Port + 1 Parallel Port PCI Express Card, PCIe Serial Port, Parallel Port Combo Card PCI Express Card Compatible with 16C450/16C550 UART
Diyeeni

Diyeeni DualSerial 2 Port + 1 Parallel Port PCI Express Card

Bottom line: The Diyeeni DualSerial 2 Port + 1 Parallel Port PCI Express Card is a specs-and-price decision rather than a crowd-consensus one in the expansion cards category, priced around $17.95 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$17.95

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ It is easy to allow more serial and parallel devices to be connected to your computer.
  • ✓ Backed by Diyeeni's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Features:1. It is easy to allow more serial and parallel devices to be connected to your computer.2. Two 9pin RS232 DB9 external serial ports and one 25 external parallel LPT port.3. Complies with PCI Express Specification Revision 1.1.4. WCH382 master chip, stable and powerful.5. PCI Express single lane (x1) bus bandwidth 2.5 Gbps.6. Support for DOS, 8 / 7 / Vista / / 2000 / Server 20032008 32/64 bit, Linux operating system.Specifications:Compliant with PCIExpress Specification Revision 1.1PCIExpress SingleLane (x1) bus bandwidth 2.5GbpsSupport for DOS, 8 / 7 / Vista / / 2000 / Server…

SpecPicks Verdict

SpecPicks scored Diyeeni DualSerial 2 Port + 1 Parallel Port PCI Express Card using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. Diyeeni's expansion cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for expansion cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 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.

Full Specifications

BrandDiyeeni
StyleClassic
Style NameClassic
Unit Count1.0 Count
Model NumberDiyeeniu0g8fgmb9k
Mfr Part NumberDiyeeniu0g8fgmb9k
Compatible DevicesDesktop
Hardware InterfacePCI
Full listing titleDualSerial 2 Port + 1 Parallel Port PCI Express Card, PCIe Serial Port, Parallel Port Combo Card PCI Express Card Compatible with 16C450/16C550 UART

Ready to buy?

DualSerial 2 Port + 1 Parallel Port PCI Express Card, PCIe Serial Port, Parallel Port Combo Card PCI Express Card Compatible with 16C450/16C550 UART is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $17.95

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Related Expansion Cards

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →