Expand Serial Connectivity Without Replacing Existing Equipment

The PCI 2 Serial Port Card W-9835-2S-L adds two serial communication ports to a compatible computer through a PCI bus slot. It is a practical expansion solution for organizations that continue to operate serial-based equipment, including industrial controllers, point-of-sale systems, test instruments, access-control devices, barcode equipment, modems, and other legacy peripherals.

For B2B buyers, the card helps extend the service life of existing computer hardware and supports system upgrades where built-in serial ports are unavailable or insufficient. Its dual-UART architecture allows two serial devices to communicate through one expansion card, helping system integrators simplify installation, reduce additional hardware requirements, and maintain established serial communication workflows.

Core Features of W-9835-2S-L

16-Byte UART FIFO for Stable Data Processing

The W-9835-2S-L incorporates a 16-byte transmit-and-receive FIFO for UART communication. The FIFO temporarily stores incoming and outgoing data, helping the host computer process serial information efficiently when multiple communication tasks are active.

Selectable receive trigger levels provide additional flexibility in controlling how received data is handled. Combined with modem control signals, status reporting functions, and software-programmable operating modes, the card is suitable for a variety of commercial, maintenance, and industrial serial communication requirements.

Technical Specifications

Flexible DB9 and DB25 Connector Options

The standard W-9835-2S-L configuration uses two DB9 male connectors, a common interface for industrial devices, modems, control systems, measurement equipment, and other serial peripherals. A DB25 male connector configuration may also be selected for projects that use compatible legacy equipment or established cabling systems.

Before placing an order, buyers should confirm the required connector type, cable pinout, communication protocol, and peripheral interface. Providing this information during the inquiry process helps reduce compatibility risks and allows the correct card configuration to be selected.

Applications for Industrial and Legacy Systems

The PCI 2 Serial Port Card W-9835-2S-L is suitable for projects that require dependable serial connectivity through a PCI-equipped computer. Typical application scenarios include:

• Industrial computer maintenance and system upgrades

• Factory automation and machine-control terminals

• Point-of-sale systems and retail equipment

• Laboratory instruments and testing systems

• Data collection and monitoring stations

• Access-control and security equipment

• Modems, barcode devices, and legacy serial peripherals

Compatibility Checks Before Ordering

Buyers should verify that the target motherboard includes a compatible PCI slot and that the computer can provide the required 5V operating environment. The available chassis space, bracket position, connector orientation, operating system, and device driver requirements should also be checked before installation.

For serial communication, confirm the baud rate, cable pinout, serial protocol, modem control requirements, and connector type used by the connected equipment. These checks are particularly important for maintenance projects involving older computers or specialized industrial devices.

Why Choose PCI 2 Serial Port Card W-9835-2S-L?

W-9835-2S-L provides a practical way to add two serial ports to compatible PCI-based computers without replacing the complete system. Its dual-UART design, 16-byte FIFO, programmable baud rate, selectable receive trigger levels, and connector options make it suitable for legacy equipment support, system integration, maintenance replacement, and industrial computer projects.

For distributors and professional buyers, the card offers a focused serial expansion solution for customers who still depend on PCI architecture and DB9 or DB25 serial communication. It can be evaluated for sample orders, replacement requirements, recurring procurement, channel distribution, and project-based purchasing.

Request Pricing and Availability

Contact us for current pricing, availability, minimum order quantity, sample options, packaging details, and estimated delivery information for the PCI 2 Serial Port Card W-9835-2S-L.

To receive an accurate quotation and compatibility review, please provide the required quantity, destination country, preferred DB9 or DB25 connector, target motherboard or computer model, operating system, connected serial device, and intended application. Buyers with recurring demand may also include annual purchasing volume, labeling requirements, packaging preferences, and expected delivery schedule.