• Home
        • StarTech.com 4-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 - TAA

        StarTech.com 4-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 - TAA

        SKU: PEX4S953LP
        £79.05 ex VAT
        £94.86 inc VAT
        Product in stockIn stock
        • PCI Express to Serial Adapter | 921.6Kbps | Windows® and Linux® Compatible

          This PCI Express RS232 serial adapter card lets you add four RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slot. The 4 port PCIe serial card enables you to interact with serial devices, such as card readers, printers, PIN pads, and modems, at speeds of up to 921.6Kbps.

          Maximum Compatibility

          With broad OS support, including for Windows and Linux, this PCI E serial card is easy to integrate into mixed environments. The card comes pre-configured with low-profile brackets and includes optional full-profile brackets, so installation is easy regardless of the case form factor. This card is a direct replacement for PEX4S952LP .

          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 921.6Kbps
          • Provides 5/12V power output on Pin 9 when external power is connected
          • 256-byte depth FIFO cache per transmitter and receiver
          • Supports 9, 8, 7, 6, 5 data bits (one per port)
          • Asix AX99100 chipset

          PCI Express 1.1 compliant

          The Choice of IT Pros Since 1985

          StarTech.com conducts thorough compatibility and performance testing on all our products to ensure we are meeting or exceeding industry standards and providing high-quality products to IT Professionals. Our local StarTech.com Technical Advisors have broad product expertise and work directly with our StarTech.com Engineers to provide support for our customers both pre and post-sales.

          PEX4S03LP is backed by a StarTech.com lifetime warranty and free lifetime technical support.

          The StarTech.com Advantage
        • Ports & interfaces
          InternalYes
          Output interfaceSerial
          Host interfacePCIe
          Expansion card standardPCIe 1.1
          Technical details
          ChipsetAsix AX99100
          FIFO (First In, First Out)256 B
          Compliance certificatesRoHS
          Performance
          Stop bits1, 1.5, 2
          Data bits5, 6, 7, 8, 9
          Baud rate921.6 Kbit/s
          ChipsetAsix AX99100
          FIFO (First In, First Out)256 B
          Product colourGreen
          Harmonized System (HS) code84733020
          Certificates
          CertificationCE, FCC
          Colour
          Product colourGreen
          Design
          Mean time between failures (MTBF)214358 h
          InternalYes
          Product colourGreen
          CertificationCE, FCC
          Features
          Stop bits1, 1.5, 2
          Data bits5, 6, 7, 8, 9
          Baud rate921.6 Kbit/s
          ChipsetAsix AX99100
          FIFO (First In, First Out)256 B
          Parity bitEven, Mark, No, Odd, Space
          Flow Control typeNo, RTS/CTS, XON/XOFF
          Harmonized System (HS) code84733020
          Operational conditions
          Operating temperature (T-T)-10 - 80 °C
          Storage temperature (T-T)-20 - 100 °C
          Operating relative humidity (H-H)5 - 85%
          System requirements
          Windows operating systems supportedWindows 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 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 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64
          Linux operating systems supportedYes
          Server operating systems supportedWindows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
          Weight & dimensions
          Width75 mm
          Depth63 mm
          Height18 mm
          Weight264 g
          Package width213 mm
          Package depth149 mm
          Package height51 mm
          Package weight370 g
          Packaging data
          Mounting brackets includedYes
          Package width213 mm
          Package depth149 mm
          Package height51 mm
          Package weight370 g
          Cables includedSerial
          Quick installation guideYes
          Quantity1
          Logistics data
          Products per master (outer) case16 pc(s)
          Master (outer) case width480 mm
          Master (outer) case length350 mm
          Master (outer) case height235 mm
          Harmonized System (HS) code84733020
          Packaging content
          Mounting brackets includedYes
          Cables includedSerial
          Quick installation guideYes
          Quantity1
          Other features
          ChipsetAsix AX99100
        • Your parcel will arrive within 5 business days (excluding weekends and public holidays) after you place your order. Items are shipped in working days only, your order may arrive anytime between 7am and 9pm. Deliveries are not made on public holidays, so you can expect your order to arrive the next working day.


          Items must be returned in an unused and saleable condition within 16 days of the receipt of goods. Please read our delivery and returns policy for further information.