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header-product InLine PCIe Interface Card with 1 Port Serial 9 Pin MosChip MCS9901 Chipset 2.5 Gbit/s Data Transfer Rate
24.99 €

InLine PCIe Interface Card with 1 Port Serial 9 Pin MosChip MCS9901 Chipset 2.5 Gbit/s Data Transfer Rate

InLine PCIe 1 Port Serial 9 Pin Interface Card Photo 1
InLine PCIe 1 Port Serial 9 Pin Interface Card Photo 2
InLine PCIe 1 Port Serial 9 Pin Interface Card Photo 1
InLine PCIe 1 Port Serial 9 Pin Interface Card Photo 2
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InLine PCIe Interface Card with 1 Port Serial 9 Pin MosChip MCS9901 Chipset 2.5 Gbit/s Data Transfer Rate

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InLine PCIe Interface Card with 1 Port Serial 9 Pin MosChip MCS9901 Chipset 2.5 Gbit/s Data Transfer Rate

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Short description

InLine PCIe interface card featuring 1 serial 9-pin port and MosChip MCS9901 chipset. Designed to add a legacy serial connection to your desktop computer via a PCI Express host interface. Supports a data transfer rate up to 2.5 Gbit/s. Compatible with Windows, Linux, Mac OS, and DOS operating systems, making it ideal for connecting industrial equipment, older peripherals, and specialized serial devices.
Available at price 24.99 €: 166 pcs.
Total available for order: 332 pcs.
Warranty: 2 Years
SKU: 434333
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
22.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
27.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.06 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
27.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The InLine PCIe Interface Card with 1 Port Serial 9 Pin MosChip MCS9901 Chipset 2.5 Gbit/s Data Transfer Rate is designed to add a legacy RS-232 serial connection to a desktop computer via a PCI Express host interface. Utilizing a reliable MosChip chipset and offering a data transfer rate up to 2.5 Gbit/s for the PCIe link, this expansion card facilitates the integration of older peripherals and specialized hardware into modern computer systems. Featuring internal installation and broad operating system compatibility, it provides a stable connection for professional, industrial, and legacy applications.

Advantages

This interface card allows users to effortlessly retrofit a traditional 9-pin serial port onto motherboards that lack legacy ports, utilizing a standard PCI Express x1 slot. The inclusion of on-chip FIFO buffers and support for both hardware and software flow control ensure steady and reliable data transmission even under demanding workloads. Furthermore, the extensive driver compatibility spanning Windows, Linux, Mac OS, and DOS provides high flexibility for various operational environments without requiring complex hardware modifications.

Suitable for

  • Connecting legacy industrial equipment and machinery with serial interfaces
  • Integrating older peripherals such as receipt printers, bar code scanners, and scientific instruments
  • Maintaining older software solutions operating under DOS or legacy Windows environments
  • Service, diagnostic, and technical support workstations requiring RS-232 communication

This product may not be suitable if your computer motherboard lacks an available PCI Express slot, or if you require modern high-speed peripheral connections such as USB 3.0 or HDMI, which serve entirely different data transfer purposes. It is also not designed for internal serial devices that require specialized proprietary cabling not supported by standard 9-pin D-sub connectors.

Key specifications

  • Host interface: PCIe
  • Output interface: Serial 9-pin (RS-232)
  • Chipset: MosChip MCS9901
  • PCIe data transfer rate: Up to 2.5 Gbit/s
  • UART compatibility: Industry standard 16C450 / 16C550
  • Buffer: 256 byte deep FIFO transmit and receive buffer
  • Supported operating systems: Windows 2000, XP 32/64 Bit, Server 2003, Vista 32/64 Bit, Linux, Mac OS, DOS

To install the InLine PCIe interface card, power down your computer, unplug it from the electrical outlet, and open the system chassis. Insert the card firmly into an available PCI Express x1 slot, secure the bracket to the computer case, and close the chassis. Reconnect the power supply and boot up the system. Install the appropriate drivers for your specific operating system to enable full functionality of the serial port before connecting any external serial peripherals.

What to consider before purchase

  • Verify that your computer motherboard has an available and compatible PCI Express slot
  • Check your operating system version against the supported driver list to ensure compatibility
  • Confirm that your external devices utilize a standard 9-pin RS-232 serial connection
Usage recommendations: Ensure that the computer is completely powered off and disconnected from the mains before installing or removing the PCIe card to prevent electrostatic discharge or hardware damage. Configure the correct data bits, parity, and stop bits matching your peripheral device requirements within your operating system settings for optimal performance.

Specifications

Internal: The product is built in.
Yes
Host interface: Interface that enables a host controller to communicate with a driver.
PCIe
Output interface: The socket (port) where the output connectors are connected.
Serial
All features

Weight & dimensions

Package weight: Weight of the packaged product.
59 g
Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.059 kg
Depth: The distance from the front to the back of something.
1.29 mm

System requirements

Compatible operating systems: List of desktop operating systems tested as compatible with this product.
Windows 2000, XP 32/64 Bit, Server 2003, Vista 32/64 Bit, Linux, Mac OS, DOS

Other features

Package volume:
1000 cm³
Mac compatibility: Product can be used with Apple Mac software and/or hardware.
Yes
Data transfer rate: Rate at which data can be transferred, usually measured in units per second. May vary with network configurations.
2500 Mbit/s

Packaging data

Package height: The distance from the top to the bottom of the packaging.
40 mm
Package depth: The distance from the front to the back of the packaging.
178 mm
Package width: The distance from one side of the packaging to the other.
145 mm

Design

Internal: The product is built in.
Yes

Ports & interfaces

Serial ports quantity: The number of serial ports in a computer or peripheral. A serial port is a serial communication physical interface through which information transfers in or out one bit at a time. The term "serial port" usually identifies hardware more or less compliant to the RS-232 standard, intended to interface with a modem or with a similar communication device. In modern computers and peripherals, serial ports have largely been replaced by USBs and other interfaces.
1
Host interface: Interface that enables a host controller to communicate with a driver.
PCIe
Output interface: The socket (port) where the output connectors are connected.
Serial

Performance

Chipset: Set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals. It is usually found in the motherboard of a computer. Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance.
MosChip MCS9901
Data transfer rate: Rate at which data can be transferred. Usually expressed in units per second. May vary with network configurations.
2.5 Gbit/s

Description

Machine translation. Load original

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Stock data
Warehouse Stock Delivery to the store Store Price
WH357 166 22.10.2026 Best delivery
24.99 € Best price
Available only for legal entities
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WH109 166 05.11.2026
34.49 €
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Delivery Date: 22.10.2026 Best delivery
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Delivery Date: 05.11.2026
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Customer reviews

Customer questions

FAQ

How much does the InLine PCIe 1 Port Serial 9 Pin Interface Card cost, and is it available for purchase?

The price is 24.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 332 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.10.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All InLine products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized InLine service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: internal, host interface, output interface, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for InLine PCIe 1 Port Serial 9 Pin Interface Card?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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