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LF566KB PCI 2 Port RS232 Serial Card Adapter
Softio

LF566KB PCI 2 Port RS232 Serial Card Adapter

Bottom line: The Softio LF566KB PCI 2 Port RS232 Serial Card Adapter is a specs-and-price decision rather than a crowd-consensus one in the expansion cards category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

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.

Pros & Cons

Pros

  • ✓ Dual High Speed 16950 PCI Serial Ports, Oxford 16C950 UART with 2 of DB9 Male Connectors
  • ✓ Backed by Softio'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

Supported by Design Engineers. Designed & Assembled in Canada

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SpecPicks Verdict

SpecPicks scored Softio LF566KB PCI 2 Port RS232 Serial Card Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. Softio'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

  • Dual High Speed 16950 PCI Serial Ports, Oxford 16C950 UART with 2 of DB9 Male Connectors
  • TRUE 1 Megabaud RS232 Transceivers, 128 Byte Transmit & Receive Buffers
  • Software Selectable NON-VOLATILE Clock Divisors with LED Indicators
  • 15 kV ESD + 15 kV HBM Surge Protection, Short-Circuit / Thermal & Current Protected Transceivers
  • Windows (32 & 64 bit), 2.4.18+ Linux Kernels (32 & 64 bit) with Plug & Play Support, 5 Year Warranty

Full Specifications

BrandSoftio
StyleClassic
Style NameClassic
Unit Count1 Count
Model NumberLF566KB
CompatibilityLinux
Mfr Part NumberLF566KB
Hardware InterfacePCI, eSATA

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LF566KB PCI 2 Port RS232 Serial Card Adapter 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.

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LF566KB PCI 2 Port RS232 Serial Card Adapter
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