Top 8 Port Serial Card Reviews

StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - Low Profile Serial Card (PEX4S553), Green

  • Add 4 RS-232 serial ports to your standard or small form factor computer through a PCI Express Expansion Slot.
  • Native single-chip, single lane PCI Express chipset delivers true PCIe performance, up to 48% more efficient than bridge chip designs.
  • Standard and low profile/half-height brackets included to ensure fitment in any system.
  • Four high speed RS232 serial ports, with support for data transfer rates up to 128000bps.
  • 256-byte deep FIFO per transmitter and receiver.
  • Native single-Chip, single lane PCI Express.
  • Includes half-height/low profile mounting brackets.
  • Compliant with PCI Express Base Specification 1.1.
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StarTech.com 2-Port PCI RS232 Serial Adapter Card - PCI Serial Port Expansion Controller Card - PCI to Dual Serial DB9 Card - Standard (Installed) & Low Profile Brackets - Windows/Linux (PCI2S5502)

  • 2 PORT PCI RS232 SERIAL ADAPTER CARD: Controller card w/ 16C550 UART based on ASIX MCS9865, 2x DB9 ports w/bi-directional RS232 speeds up to 115.2Kbps/port, 256 byte FIFO buffer & 9th data bit | Upgraded version of our popular cards PCI2S550_LP & PCI2S550.
  • TECH SPECS: Speeds up to 115.2Kbps | 16C550 UART | 256 byte FIFO buffer | 5,6,7,8 and 9 bit character | Even, Odd, No, Space or Mark Parity | Auto IRQ & IO assignment | Supports IRQ Sharing | ASIX MCS9865 Chip.
  • VERSATILE APPLICATIONS: Dual Serial Port PCI Card for PCI desktops/servers used in point of sale terminals, PLCs, CNC Machines, control/automation in factories, scientific sensors, medical equipment, scanners, oscilloscope.
  • STANDARD PROFILE & LOW PROFILE BRACKET: PCI multiport serial COM card installs using 1x standard bracket (pre-installed) or 2x low profile brackets (incl).
  • Supports Windows 7 and up, Linux 2.6.x to 5.x.
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DTECH 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 (PL2303 Chip)

  • RS232 USB to serial female adapter cable allows any PC to connect serial devices and programs that communicate through COM ports.
  • DB9 Serial cable to USB adapter is designed for connecting Serial devices such as DB9 equipped PCs, routers, GPS, Programming machine, barcode scanners, label writers, serial modems, digital cameras, card readers, palm PCs and digital organizers, etc.
  • 6ft USB to serial cable with standard USB Type A Male to standard 9-pin DB9 Female RS-232 serial connector.
  • USB to RS232 adapter is with Prolific PL-2303 Chipset for widest possible compatibility with Windows 11, 10, 8, 7, XP, Vista, 2000, 98, MacOS8 or higher, Linux 2.4.0 and later, and other platforms..
  • Note that the interface is 9-pin RS232 Female socket, please make sure that your serial device with a 9-pin Male Port before purchasing this USB to serial port adapter with Prolific PL2303 chipset (NOT FTDI chip).
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StarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16550 UART - Low Profile Expansion Card - Windows & Linux (PEX1S553LP)

  • 1 PORT SERIAL CARD: Serial controller card w/ 16550 UART based on ASIX MCS9922CV-AA, allows 1x DB9 port w/bi-directional RS232 speeds up to 460.8Kbps per port, available 256 byte FIFO buffer.
  • Upgraded version of our popular card PEX1S552LP.
  • OPTIONAL CONFIGURABLE POWER: PCI Express RS232 serial adapter card provides choice of 12v, 5v, or none through pin 9.
  • STANDARD PROFILE & LOW PROFILE BRACKET: PCIe serial card comes w/ a low profile bracket pre-installed & 1x full profile bracket is incl for versatile install.
  • VERSATILE APPLICATIONS: For low/standard profile desktop/servers w/ uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanner, oscilloscope.
  • THE IT PRO'S CHOICE: Designed and built for IT Professionals, this PCIe serial adapter card is backed for life, including free lifetime 24/5 multi-lingual technical assistance.
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StarTech.com 1-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 (PEX1S953LP)

  • 1 PORT SERIAL CARD: Serial controller card w/ 16950 UART based on ASIX AX99100, allows 1x DB9 port w/bi-directional RS232 speeds up to 921.6Kbps per port, available 256 byte FIFO buffer & 9th data bit.
  • Upgraded version of our popular card PEX1S952LP.
  • OPTIONAL CONFIGURABLE POWER: PCI Express RS232 serial adapter card provides choice of 12v, 5v, or none through pin 9 w/up to 2A total.
  • STANDARD PROFILE & LOW PROFILE BRACKET: PCIe serial card comes w/ a low profile bracket pre-installed & 1x full profile bracket is incl for versatile install.
  • VERSATILE APPLICATIONS: For low/standard profile desktop/servers w/ uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanner, oscilloscope.
  • THE IT PRO'S CHOICE: Designed and built for IT Professionals, this PCIe serial adapter card is backed for life, including free lifetime 24/5 multi-lingual technical assistance.
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Dell 3J8FW H200 Raid Controller - R Series Servers

  • Dell Perc H730p Raid Controller Card - 2 Gb - 12gb/s Sas, Serial Ata/300 - Pci Express 3.0 X8 - Plug-in Card - Raid Supported - 0, 1, 5, 6, 10, 50, 60 Raid Level - 8 Total Sas Port(s) - 8 Sas Port(s) Internal - Linux, Pc - 2 Gb Flash Backed Cache.
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StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Dual Serial DB9 Card - 16550 UART - Expansion Card - Windows & Linux (PEX2S553)

  • 2 PORT SERIAL CARD: Serial controller card w/16550 UART based on ASIX MCS9922CV-AA, allows 2x DB9 ports w/bi-directional RS232 speeds up to 460.8Kbps per port, available 256 byte FIFO buffer | Upgraded version of our popular card PEX2S952.
  • OPTIONAL CONFIGURABLE POWER: PCI Express RS232 Serial Adapter Card provides choice of 12v, 5v, or none through pin 9. Each of the 2 ports are individually configurable.
  • STANDARD PROFILE & LOW PROFILE BRACKET: PCIe multiport serial card comes w/ a standard bracket pre-installed & 2x low profile brackets incl for versatile install.
  • VERSATILE APPLICATIONS: For standard profile desktop/servers with uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanners, oscilloscope.
  • THE IT PRO'S CHOICE: Designed and built for IT Professionals, this PCIe serial adapter card is backed for life, including free lifetime 24/5 multi-lingual technical assistance.
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StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Dual Serial DB9 Card - 16950 UART - Expansion Card - Windows & Linux (PEX2S953)

  • 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 | Upgraded version of our popular card PEX2S952.
  • 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.
  • STANDARD PROFILE & LOW PROFILE BRACKET: PCIe multiport serial card comes w/ a standard bracket pre-installed & 2x low profile brackets incl for versatile install.
  • VERSATILE APPLICATIONS: For standard profile desktop/servers with uses in point of sale terminals, PLCs, control/automation in factories, scientific sensors, medical equipment, scanners, oscilloscope.
  • THE IT PRO'S CHOICE: Designed and built for IT Professionals, this PCIe serial adapter card is backed for life, including free lifetime 24/5 multi-lingual technical assistance.
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Creality 3D Printer Part Limit Switch with Separate Package CNC for RAMPS 1.4 RepRap 3D Printer CR-10 10S,S4,S5,Ender 3/Ender 3 Pro/Ender 3 V2/Ender 5 (Pack of 3)

  • 1.Upgrade the firmware by SD card. It is easy and convenient to operate.This display board has higher compatibility. Users can select two work modes,they are UART serial port screen mode and 12864 screen mode..
  • 2.Serial port screen mode supports two printing modes: SD card and U disk..
  • 3.Reserve WIFI port, and WIFI function is realized by external WIFI module.
  • 4.Reserve the extension port of filament breaking detection (FIL-DET).
  • Reserve the extension port of automatic shutdown after printing (PS-ON).
  • 5.2 sets of UART serial port extension ports are reserved for DIY use..
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SIIG Serial PCIe Card RS232 (Serial Port x2)

  • The 16C650 UART serial port with data transfer rate up to 250Kbps..
  • The card is compatible with IEEE 1284 -1994 parallel port standard for SPP/Byte/ECP Mode.
  • It works as standard RS-232 port or with 5V or 12V power output for devices that require power (such as handheld scanners, table scanners, POS displays, etc.), power output configurable via jumpers.
  • The PCIe serial card can decrease the loading on CPU activity which helps ensure optimal system performance and keep errors from happening..
  • The card is with dual-profile design which fits full height and low-profile system chassis with the included spare low-profile brackets.
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CERRXIAN 4 Port PCI-E RS232 Serial Adapter Card, PCI-E Serial Expansion Card, RS232 PCI Express x1 Serial DB9 COM Expansion Card for PC

  • GOOD CHOICE - Most new computers don't have a serial port, and most serial port cards have a lot of issues, but if you're looking for a serial port to communicate with older devices, the card works well.This is the best solution for you add 4 RS232 (DB9) serial ports, using a single PCI Express expansion slot..
  • INDEPENDENT POWER CHIPEST - Built-in AX99100 CHIPEST,No external power supply provides RS-232 serial port or 5v 12v DC power output through the COM of the first needle or the needle 9.Stable performance, strong compatibility, high - speed storage..
  • 4 RS232 PORT - 4 standard external RS-232 DB9 serial ports.All serial ports support slow IrDA mode and speeds up to 115200bps,compatible with 2 UART and 4 UART..
  • PCI EXPRESS X1 - Compliant with PCI Express 2.0 gen1, compatible with PCIE x1, x2, x4, x8, x16 slots..
  • BROAD COMPATIBILITY - Compatible operating system :Windows XP/ 2003 Server/ Vista/ WIN7/ WIN8.x / WIN10 / Linux Kernel 2.6 15 and later/ Android 1.x/ 2.x/ 3.x/ 4.x/ 5.x.Perfect for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more to your system..
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SIIG Serial PCIe Card RS232 (Serial Port x1 & Parallel Port x1)

  • The 16C650 UART serial port with data transfer rate up to 250Kbps..
  • The card is compatible with IEEE 1284 -1994 parallel port standard for SPP/Byte/ECP Mode.
  • It works as standard RS-232 port or with 5V or 12V power output for devices that require power (such as handheld scanners, table scanners, POS displays, etc.), power output configurable via jumpers.
  • The PCIe serial card can decrease the loading on CPU activity which helps ensure optimal system performance and keep errors from happening..
  • The card is with dual-profile design which fits full height and low-profile system chassis with the included spare low-profile brackets.
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Intel Intel Raid Controller Rs3mc044

  • Intel 8-port Sas Raid Controller - Serial Ata/600 - Pci Express X8 - Plug-in Card - Raid Supported - 0, 1, 5, 6, 10, 50, 60 Raid Level - 2 Total Sas Port(s) - 2 Sas Port(s) Internal.
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