InLine® PCIe 4-port RS-232 card, 4x D-Sub 9 connector, incl. low-profile content_copy

Reliable serial communication: Four independent RS-232 interfaces in D-Sub 9 format enable simultaneous connection of multiple devices.
Industrial-grade chipset: The CH384L controller offers stable transmission at up to 921,600 bps and supports all important RS-232 signals.
Flexible integration: The PCIe x1 card fits into modern computers and is compatible with PCIe v2.0 and higher – including low-profile slot brackets.
High-quality signal processing: A 256-byte FIFO buffer and ±15 kV ESD protection ensure secure and interference-free data transmission.
Broad operating system support: Compatible with Windows 7 to 11, Windows Server 2008 R2 and higher, and common Linux distributions from kernel 2.6.30 onwards.
The InLine® PCIe 4-Port RS-232 Card is the ideal solution for expanding modern PCs and industrial applications with four additional serial interfaces. Each of the four ports uses the proven D-Sub 9 format and supports a wide range of serial signals, including TXD, RXD, RTS, CTS, DTR, DSR, DCD, and RI.
Thanks to the powerful CH384L chipset, the card enables reliable transmissions with flexible baud rates up to 921,600 bps. The integrated FIFO buffer with 256 bytes per direction ensures that stable connections are maintained even under high data loads. This makes the card the first choice for professional applications such as machine control, measurement technology, network management, or POS systems.
The PCIe x1 interface guarantees easy integration into existing systems. The card is compatible with both standard and low-profile housings – corresponding slot brackets are included in the scope of delivery. Integrated ESD protection up to ±15 kV protects the interfaces from electrostatic discharge.
Whether in industry or for demanding hobby projects, this card combines proven technology with modern interface architecture. It is suitable for current Windows versions as well as many Linux distributions and offers a wide range of applications for professional and semi-professional users.
Technical data
PCIe standard: PCIe v1.1 x1 lane (compatible with PCIe 2.0 and higher)
Connectors: 4x RS-232, D-Sub 9 plug (male)
Chipset: CH384L
Baud rates: 50 to 921,600 bps (transfer speed per second)
FIFO buffer: 256 bytes for transmit and receive data (stable transmission at high data rates)
Signal sets: TXD, RXD, RTS, CTS, DTR, DSR, DCD, RI
Transmission mode: Full duplex
Data bits: 5, 6, 7, or 8 bits (depending on the connected device)
Stop bits: 1 or 2 (marking the end of transmission)
Parity: None, even, odd, mark, space (check settings for serial communication)
ESD protection: up to ±15 kV
Operating temperature: 0 °C to 55 °C
Storage temperature: -40 °C to 70 °C
Maximum humidity: 90%, non-condensing
Supported operating systems
Windows 7 / 8 / 8.1 / 10 / 11
Windows Server 2008 R2 and newer
Linux from kernel 2.6.30
Scope of delivery
1x InLine PCIe 4-port RS-232 card, 4x D-Sub 9 connectors
4x low-profile slot bracket
1x driver CD
1x user manual German/English

Design
Purpose	PC
Country of origin	Taiwan
Internal
Features
Chipset	CH384L
Baud rate	921.6 Kbit/s
FIFO (First In, First Out)	256 B
Data bits	5, 6, 7, 8
Stop bits	1, 2
Parity bit	Even, Mark, No, Odd, Space
Full duplex
Operational conditions
Operating temperature (T-T)	0 - 55 °C
Storage temperature (T-T)	-40 - 70 °C
Other features
Dimensions (WxDxH)	100 x 1.83 x 120 mm
Electrostatic Discharge (ESD) protection	15 kV
Packaging data
Package width	125 mm
Package depth	180 mm
Package height	30 mm
Package weight	90 g
Package volume	700 cm³
Package type	Box
Mounting brackets included
Drivers included
Ports & interfaces
Host interface	PCIe
Host interface gender	Male
Output interface	Serial
Expansion card standard	PCIe 2.0
Serial ports quantity	4
Serial interface type	RS-232, 9-pin
System requirements
Windows operating systems supported	Windows 10, Windows 11, Windows 7, Windows 8, Windows 8.1, Windows XP
Linux operating systems supported	Kernel 2.6, Kernel 2.6.31, Kernel 2.6.33, Kernel 3.12, Kernel 3.17, Kernel 3.3, Kernel 4.6.4, Linux Kernel 5.10, Linux Kernel 5.11, Linux Kernel 5.12, Linux Kernel 5.13, Linux Kernel 5.14, Linux Kernel 5.15, Linux Kernel 5.19, Linux Kernel 5.4, Linux Kernel 5.8, Linux Kernel 5.9, Linux Kernel 6.2, Linux Kernel 6.5, Linux Mint 10, Linux Mint 11, Linux Mint 12, Linux Mint 13, Linux Mint 17, Linux Mint 17.1, Linux Mint 17.2, Linux Mint 18.3, Linux Mint 9
Server operating systems supported	Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2013, Windows Server 2016, Windows Server 2019, Windows Server 2022
Technical data
Connections external	4x 9pin serial
Height packaging	0.030m
Interface	Serial
Slot	PCIe
Type	Interface card
Chipset	WCH CH384L
Weight	0.183kg
Packaging volume	0.0007m³
Transmission rate	921600b/s
Length packaging	0.180m
Article width	12.00cm
Connections internal	None
Width packaging	0.125m
Article height	2.00cm
Article length	10.00cm
Net weight	0.090kg
Low Profile
Technical details
Compliance certificates	CE, Federal Communications Commission (FCC), TÜV mark
Weight & dimensions
Width	100 mm
Depth	1.83 mm
Height	120 mm
Weight	2 kg

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