Is tis compatible with Linux? Windows 7 Pro?

I truly need to know that it to works in Linux for the project we are working on. We will be running a dual OS test

Running under Linux, can I put two or more of these in a machine and count on not having interrupt collisions?

That really depends on your motherboard. I hope you realize that PCI Express doesn't use physical interrupt lines at all, everything is multiplexed; so if your motherboard follows the spec properly and your OS is compliant there is no reason you couldn't use several cards at once. The older PCI bus motherboards had options for overriding the PnP settings to give each UART its own dedicated IRQ due to software conflicts with the virtualized interrupt levels; this hasn't been a problem for 10 years or more.

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SYBA 4 Serial Ports PCI-e Controller Card, w/ Fan-out Cable, Low Profile Bracket, Chipset (WCH384L) Model SI-PEX15038

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PCI Express to Serial Port Card
External Ports 1 x Serial Port
Low Profile Bracket

Overview

Specs

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Fan-out cable design for easy access to all 4 Serial ports.Host Interface: PCI Express x1Data Transfer Rate: 16 MbpsPorts Expandability: 4 x 9-pin DB-9 RS-232 - Serial, Via CableForm Factor: Plug-in CardPackage Contents: 4 Serial Ports PCI-e x1 Controller Card Fan-out Cable (DB44 to 4 DB9, 10) Driver CD User Manual Low Profile Bracket Limited Warranty: 3 YearPackage Contents 4 Serial Ports PCI-e x1 Controller Card Fan-out Cable (DB44 to 4 DB9, 10") Driver CD User Manual Low Profile Bracket "

Fan-out cable design for easy access to all 4 Serial ports.

Model
Brand	SYBA
Model	SI-PEX15038

Details
Type	PCI Express to Serial Port Card
External Ports	1 x Serial Port
Operating Systems Supported	Windows 8 Windows 7 Vista Windows XP Windows ME Windows 98/98SE/98ME Server 2003 Server 2000(32bit Only) Linux Kernal 2.4 & 2.6 Mac 10.4 & Above
Specifications	PCI Express: Fully Compliant with PCI Express Base Specification, Revision 1.0a PCIe Multi Function Peripheral Controller with x1 lane Interface Support for D1, D2, D3 Hot and D3 Cold Utilizes 100-MHz Differential PCI Express Common Reference Clock Support PCIe Power Management Serial Port: Four 16c450/550/Extended 550 Compatible UARTs Supports RS232 Modes Bi-directional Speeds from 50 bps to 16 Mbps/Port Full Serial Modem Control Supports Hardware, Software Flow Control 5, 6, 7, 8 and 9-bit Serial Format Support Support MODEM Modem Signals CTS, DSR, RI, DCD, the DTR, RTS, Convert RS232 Level Even, Odd, None, Space & Mark Parity Supported Custom BAUD Rates Supported with External Clock or by Programming Internal PLL On Chip 256 Byte Depth FIFOs in Transmit, Receive Path of Each Serial Port Supports Remote Wakeup and Power Management Features Serial Port Transceiver Shutdown Support Support Slow IrDA on All Serial Ports

Packaging
Package Contents	4 Serial Ports PCI-e x1 Controller Card Fan-out Cable (DB44 to 4 DB9, 10") Driver CD User Manual Low Profile Bracket

Additional Information
Date First Available	August 14, 2023

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SYBA 4 Serial Ports PCI-e Controller Card, w/ Fan-out Cable, Low Profile Bracket, Chipset (WCH384L) Model SI-PEX15038

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Customer Reviews of the Syba SI-PEX15038

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Warranty, Returns, And Additional Information

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Item#: 9SIA3XWJYH2360

Meet Your Seller

SYBA 4 Serial Ports PCI-e Controller Card, w/ Fan-out Cable, Low Profile Bracket, Chipset (WCH384L) Model SI-PEX15038

Learn more about the Syba SI-PEX15038

Customer Reviews of the Syba SI-PEX15038

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info