10 BEST SERIAL PORT CARDS for sale in 2022 – compare between the best serial port cards on sale.

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1
StarTech.com 2 Port PCI RS232 Serial Adapter Card with 16550 UART - Serial Adapter - PCI - RS-232 x 2 - PCI2S550
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164 Reviews
Product Highlights
  • Add 2 high-speed RS-232 serial ports to your PC through a PCI expansion slot
  • Serial Adapter
  • RS232 Card
  • PCI Serial Card

$36.99 $20.00
2
PCIE 2 Port Serial Expansion Card PCI Express to Industrial DB9 RS232 COM Port Adapter WCH382 Chip for Desktop PC Windows 10 with Low Bracket
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Product Highlights
  • This card capability allow for upgrade with additional serial cards to your computer easily.
  • 2 x 16550 Fast Uart serial port, data transfer rate support up to 115200bps.
  • Plug and Play, Automatically selects IRQ & IO address, Supports IRQ sharing.
  • Compliant with ExpressCard/34mm Standard; Compatible to 1-Lane (x1) PCI-Express Throughput.

$21.98
3
SIIG Single Serial Port/RS-232 and Single Parallel Port PCIe Card Compatible with 16C550 UART (JJ-E20311-S1)
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Product Highlights
  • Easily adds one serial port and one parallel port through an available PCI Express slot. 16C650 UART serial port with data transfer rate up to 250Kbps. Compliant with PCI Express 2.0 Gen 1. Compatible with IEEE 1284 -1994 parallel port standard for SPP/Byte/ECP Mode
  • Single-lane (X1) PCI Express end-point controller with PHY integrated. Full serial modem control. Hardware and software flow control.
  • 5, 6, 7, 8 and 9-bit serial format. Even, odd, none, space and mark parity. On chip 256 byte FIFO buffers in transmit, receive path.
  • 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.Supports PCI bus Power Management Interface Specification Revision 1.2.

$19.55
4
StarTech.com 1 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART (PEX1S553LP)
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8 Reviews
Product Highlights
  • Add a RS-232 serial port to your standard or small form factor computer through a PCI Express expansion slot
  • PCI Express Serial Card
  • PCI-e Serial Card
  • PCI Express RS232

$57.99 $36.99
5
PCIe Combo Serial Parallel Expansion Card PCI Express to Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip for Desktop PC Windows 10 with Low Bracket
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Product Highlights
  • This card capability allow for upgrade with additional serial or parallel cards to your computer easily.
  • Multi-mode IEEE 1284 compliant controller (SPP, PS2, EPP, ECP), Faster data rates up to 1.5Mbps for parallel port.
  • Plug and Play, Automatically selects IRQ & IO address, Supports IRQ sharing.
  • Compliant with ExpressCard/34mm Standard; Compatible to 1-Lane (x1) PCI-Express Throughput.

$21.98
6
StarTech.com 2-Port PCI Express Serial Card with 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card (PEX2S1050)
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Product Highlights
  • MEETS INDUSTRY STANDARDS: The 2-port PCI express serial card is compliant with PCI Express 1.0a specification, and it's compatible with 1x, 2x, 4x, 8x and 16x PCI Express slots.
  • MAXIMUM COMPATIBILITY: The dual port DB9 to PCIe adapter is ideal for system upgrades in a wide range of applications including manufacturing equipment, POS equipment, and security devices.
  • HIGH-PERFORMANCE COMMUNICATION: The low-profile serial card delivers high-performance serial communication, with support for data transfer rates of up to 460Kbps.
  • SIMPLE INSTALLATION: The PCI dual serial adapter features IRQ sharing and supports plug-and-play connection. It has a standard-profile bracket installed, and an optional low-profile bracket.

$41.82
7
StarTech.com 2 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART - PCIe RS232 - PCI-E Serial Card (PEX2S553LP)
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20 Reviews
Product Highlights
  • Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI Express expansion slot
  • PCI Express Serial Card
  • PCI-e Serial Card
  • PCI Express RS232

$32.99
8
SIIG Legacy and Beyond Series 2 Port (Dual) Serial / RS-232 PCIe Card with 16C550 UART
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35 Reviews
Product Highlights
  • Quickly adds two serial ports through an available PCI Express slot
  • Supports serial port data transfer rates up to 115.2 Kbps, compatible with 16C550 UART
  • 256-byte depth FIFO buffer supports fast data transfer especially in a multitasking environment
  • Perfect solution to connect with POS system, industrial testing and control device, security system, logistic management equipment, etc.

$32.50 $25.99
9
IO Crest 2 Port Serial PCI-e 1.0 x 1 with Full and Low Profile Brackets SI-PEX15037
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Product Highlights
  • Fully Compliant with PCI-e Base Specification, Revision 1.0a
  • PCI-e Multi Function Peripheral Controller with x1 Lane Interface
  • Support for D1, D2, D3hot and D3cold
  • Utilizes 100-Mhz Differential PCI-e Common Reference Clock

$15.97 $14.47
10
shinedisk 2 Port PCIe Serial Expansion Card, PCI Express 1.0 x 1 to Industrial DB9 COM RS232 Converter Adapter Controller for Desktop PC (Will Also Work on PCI-E x4, x8, x16 Slot)
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Product Highlights
  • Two (2) 9-pin RS-232 serial ports
  • PCI Express x1 interface (will also work on PCI-E x4, x8, x16 slot)
  • Compliant with PCI Express specification Revision 1.1
  • PCI Express single-lane (x1) bus bandwidth 2.5 Gbps

$15.88

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