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StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux

StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux

Brand StarTech.com

From

£47.75

Free delivery

You save £6.23 (12%)

2 offers at 2 retailers

Listed since 7 April 2026

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Description

2 PORT SERIAL CARD: Serial controller card w/16950 UART based on ASIX AX99100, allows 2x DB9 ports w/bi-directional RS232 speeds up to 921.6Kbps per port, available 256 byte FIFO buffer & 9th data bit_x000D_. OPTIONAL CONFIGURABLE POWER: PCI Express RS232 serial adapter card provides choice of 12v, 5v, or none through pin 9 w/up to 2A total; Each of the 2 ports are individually configurable_x000D_. LOW PROFILE BRACKETS PRE-INSTALLED: PCIe multiport serial card comes w/ a low profile bracket preinstalled & a full profile bracket is incl for versatile install; supports Windows XP and up & Linux_x000D_. VERSATILE APPLICATIONS: For standard/low profile desktop/servers w/ uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanner, oscilloscope_x000D_. STARTECH.COM ADVANTAGE: IT professionals choice for over 30 years; PCIe RS232 Serial expansion card is backed for life by StarTech.com, incl. free 24/5 North America based multi-lingual tech support_x000D_. _x000D_. PCI Express to Serial Adapter | 921.4Kbps | Windows® and Linux® Compatible. This RS232 Serial Adapter Card lets you add two RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slot. It enables you to interact with serial devices, such as card readers, printers, PIN pads, and modems, at speeds of up to 921.4Kbps.. Maximum Compatibility. With broad OS support, including for Windows and Linux, this PCI Express card is easy to integrate into mixed environments. The card comes pre-configured with a low-profile bracket, and includes an optional full-profile bracket, so installation is easy regardless of the case form factor.. Experience Optimal Technology. This PCIe to serial adapter supports the following features:. • Compatible with industry standard 16950 UART. • Supports max baud rate of up-to 921.4Kbps. • Provides 5/12V power output on Pin 9 when external power is connected. • 256-byte depth FIFO per transmitter and receiver. • Supports 9, 8, 7, 6, 5 data bits. • Asix AX99100 chipset. • PCI Express 1.1 compliant. PEX2S953LP is backed by a StarTech.com lifetime warranty and free lifetime technical support.. The StarTech.com Advantage. Ports & interfaces. Peripheral (Molex) power connectors (4-pin). 1. Serial interface type. RS-232. Serial ports quantity. 2. Expansion card standard. PCIe 1.1. Output interface. Serial. Host interface. Mini PCI Express. Design. Certification. CE, FCC. Mean time between failures (MTBF). 222366 h. Internal. Yes. Features. Flow Control type. No, RTS/CTS, XON/XOFF. Parity bit. Even, Mark, No, Odd, Space. Stop bits. 1, 1.5, 2. Data bits. 5, 6, 7, 8, 9. FIFO (First In, First Out). 256 B. Baud rate. 921.6 Kbit/s. Chipset. Asix AX99100. Operational conditions. Operating relative humidity (H-H). 5 - 85%. Storage temperature (T-T). -20 - 100 °C. Operating temperature (T-T). -10 - 80 °C. System requirements. Server operating systems supported. Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016. Linux operating systems supported. Yes. Windows operating systems supported. Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64. Technical details. Compliance certificates. RoHS. Weight & dimensions. Weight. 55.6 g. Height. 18 mm. Depth. 98 mm. Width. 67 mm. Packaging data. Package weight. 146.4 g. Package height. 32 mm. Package depth. 172 mm. Package width. 142 mm. Manual. Yes. Mounting brackets included. Yes. Quantity. 1. Logistics data. Master (outer) case height. 317 mm. Master (outer) case length. 690 mm. Master (outer) case width. 355 mm. Products per master (outer) case. 75 pc(s). Harmonized System (HS) code. 84733020. leaflet. manual pdf

Full specifications

Marque StarTech.com
Référence fabricant pex2s953lp
PORT SERIAL CARD Serial controller card w/16950 UART based on ASIX AX99100
OPTIONAL CONFIGURABLE POWER PCI Express RS232 serial adapter card provides choice of 12v
INSTALLED PCIe multiport serial card comes w/ a low profile bracket preinstalled & a full
VERSATILE APPLICATIONS For standard/low profile desktop/servers w/ uses in point of sale terminals
COM ADVANTAGE IT professionals choice for over 30 years
Supports The Following Features . • Compatible with industry standard 16950 UART. • Supports max baud rate of up

The StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux in its market context in 2026

The StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux is a well-regarded reference in the Informatique category. In 2026, it remains one of the most relevant choices for those seeking to balance quality and budget. The brand StarTech.com has a strong reputation among consumers, reflected in its consistent availability across many partner retailers. Thanks to our comparison tool, you can see all available offers at a glance and go directly to the retailer of your choice to complete your purchase with confidence.

StarTech.com: what this model offers

What buyers remember about the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux: consistent quality, intuitive use and a price that stays within market norms for this level of performance. The positioning of StarTech.com on the Informatique segment ensures access to spare parts and a structured after-sales service, which matters greatly in the long run. A solid choice in 2026, whether for a new purchase or to replace a failing device. Also discover the StarTech.com USB 2.0 to VGA Adapter, USB to VGA Monitor Converter for Windows, 1080p (no support for macOS/ChromeOS/Linux) - TAA from the same brand for a second level of comparison.

The strengths that really make a difference

What truly differentiates the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux from other products in the Informatique category comes down to a few concrete points: the build quality typical of StarTech.com, its availability from many retailers and accessible after-sales support. These criteria, often decisive for buyers, favour this model over alternatives on the market in 2026. Compare with the StarTech.com 7 Port PCI USB Card Adapter if you wish to explore other models from the brand.

What you need to know before buying

Before buying the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux, check the following points: stock availability at your chosen retailer, the returns policy, warranty period and delivery charges. These details are accessible from our offers table at the top of this page. StarTech.com generally offers a well-structured after-sales network for the Informatique category.

Market price ranges in 2026

RangeIndicative price
Entry-levelUnder 384300 £
Mid-range384300 £ to 896710 £
High-endOver 896710 £

Comparing prices before buying the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux can save you between £10 and £40 depending on the retailer and the time of year. Use Compiral to never overpay for your online purchases. The 2 offers listed on this page all come from verified retailers with sales conditions compliant with consumer protection law.

Frequently asked questions about StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux

Is there a refurbished version of the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux?

Refurbished versions of the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.

When do prices for the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux drop during the year?

Prices for the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Informatique category.

Is delivery free for the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux at all retailers?

Free delivery is not guaranteed for the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.

How do I return the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux if I am not satisfied?

You have a 14-day right of withdrawal for any online purchase, applicable to the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux regardless of the retailer. Precise return conditions vary by retailer: check their returns policy before buying. Statutory consumer rights protect you in the event of a defect discovered after delivery.

Is the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux worth its price in 2026?

In 2026, the StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows & Linux is listed from £47.75 at our partner retailers. This price is consistent with the positioning of StarTech.com in the Informatique category. To judge whether this price is currently attractive, check the price history on our product page. Also compare the total price including delivery to avoid any surprises at checkout.

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