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PCI-Express PCIe Expansion Card - 1X Serial COM interfaces - COM Port RS232 Interface - Adapter Converter Card, RS-232 Module with 4 Connections, 18-pin
MZHOU

MZHOU PCI-Express PCIe Expansion Card (18-pin)

Bottom line: The MZHOU PCI-Express PCIe Expansion Card 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

  • ✓ Backed by MZHOU'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

Four serial ports are expanded by PCI Express. The products are designed for POS and ATM applications and also the first choice for integrators of industrial automation systems. Supports various common operating systems, including Windows and Linux.The 4 RS-232 serial ports support a communication rate of up to 250 Kbps and deliver modem control signals to ensure compatibility with various serial peripherals. You use the PCI Express x1 bus slot, which can be installed in various PCI Express slots (including) 4x, 8x, 16x).PCI-Express 1X interface, in line with PCI Express 1.0a…

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SpecPicks Verdict

SpecPicks scored MZHOU PCI-Express PCIe Expansion Card using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. MZHOU'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

  • The adapter has four independent 18-pin standard serial ports, such as the integrated serial interface, which makes the connection more stable.
  • The adapter is a PCI-E 4-port RS232 serial port card, it has four ports so you can connect more HDMI cables as possible.
  • Data transfer rates of up to 250 Kbit / s on each port, compatible with 16C550 UART, 256 byte on-chip FIFO depth when sending.
  • Good performance - the adapter is well made, providing stable and effective data loss control. And it supports hot swap.
  • Perfect solution for connecting to POS systems, industrial test and control devices, security systems, logistics management systems, printers, scanners, etc.

Full Specifications

BrandMZHOU
StyleIndustrial
Style NameIndustrial
Model NumberMZHOU 2
Mfr Part NumberRS232
Compatible DevicesPersonal Computer
Hardware InterfacePCI Express x1
Warranty Description1 year
Full listing titlePCI-Express PCIe Expansion Card - 1X Serial COM interfaces - COM Port RS232 Interface - Adapter Converter Card, RS-232 Module with 4 Connections, 18-pin

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PCI-Express PCIe Expansion Card - 1X Serial COM interfaces - COM Port RS232 Interface - Adapter Converter Card, RS-232 Module with 4 Connections, 18-pin 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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PCI-Express PCIe Expansion Card - 1X Serial COM interfaces - COM Port RS232 Interface - Adapter Converter Card, RS-232 Module with 4 Connections, 18-pin
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