Skip to main content
  • In Stock
  • Sold by Newegg
  • New
Department
Show More
Brands
Show More
Price
Show More
Sold by
All Top Brands
Availability
Condition
Discount
Useful Links
Customer Ratings
avatar

Any questions? Our AI mode will help you find out quickly.

Sort By:
View:
StarTech Serial Parallel Combo Card with Dual Serial RS232 Ports (DB9) & 1x Parallel Port (DB25), PCI Adapter Expansion Card
Quick View
StarTech Serial Parallel Combo Card with Dual Serial RS232 Ports (DB9) & 1x Parallel Port (DB25), PCI Adapter Expansion Card
  • Type: Parallel Combo Card
  • Package Contents: 2S1P PCI Serial Parallel Combo Card with 16C550 UART 1 x Full-Profile Bracket 2 x Low-Profile Brackets (for Serial Ports) 1 x Low-Profile Bracket (for Parallel Port) 1 x Quick-Start Guide
  • Model #: PCI2S1P2
FOR RS232 to RS485 serial port Data Interface Adapter Converter 1.2KM 3 Bit
Quick View
FOR RS232 to RS485 serial port Data Interface Adapter Converter 1.2KM 3 Bit

Limited time offer, ends 10/07

  • Model #: C43K-0420-4605
  •  
  • $18.99 –
  • Free Shipping
FOR RS232 to RS485 serial port Data Interface Adapter Converter 1.2KM 3 Bit
Quick View
FOR RS232 to RS485 serial port Data Interface Adapter Converter 1.2KM 3 Bit

Limited time offer, ends 10/07

  • Model #: C43K-0420-4645
  •  
  • $18.99 –
  • Free Shipping
SYBA PCI-Express 2-Port DB9 Serial (RS-232) Card Model SI-PEX15055
Quick View
SYBA PCI-Express 2-Port DB9 Serial (RS-232) Card Model SI-PEX15055
  • Type: PCI Express to Serial Port Card
  • External Ports: PCI-Express
  • Internal Ports: 2 x DB9 Serial (RS-232)
  • Data Transfer Rate: up to 115200bps/port
  • Model #: SI-PEX15055
  •  
  • $53.79 –
  • Free Shipping
VoltSync USB to RS422 RS485 Serial Port Adapter Cable with FTDI Chipset 5 Position Terminal Board for Windows 11 10 8 7 XP Mac (4 Feet)
Quick View
  •  
  • $29.68 –
  • Free Shipping
PCIe x1 to 4-Port DB9 RS232 Serial COM Expansion Card, AX99100 ASIX Chipset Industrial I/O Adapter for Desktop PC
Quick View
  •  
  • $38.89 –
  • Free Shipping
USR-DR302 DIN-Rail Modbus RS485 Serial Port to Ethernet Converter Bidirectional Transparent Transmission Between RS485 and RJ45
Quick View
  •  
  • $77.99 –
  • Free Shipping
FOR PCI to 2 port Serial ports controller card DB9 RS-232 9865 PCI Serial card MCS9865 chipset pci to 2 rs232 adapter Win10
Quick View
  •  
  • $33.99 –
  • Free Shipping
8 Port Serial PCIe Expansion Card Serial Card PCIE Converter Adapter for 17V358 Chip
Quick View
  •  
  • $118.99 –
  • Free Shipping
DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet
Quick View
  •  
  • $27.63 –
  • Free Shipping
VoltSync USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet
Quick View
  •  
  • $30.66 –
  • Free Shipping
Cables Unlimited USB-2920 FTDI Chip USB2.0 to RS232 Com Port RS232 Serial Adapter
Quick View
  •  
  • $22.78 –
  • Free Shipping
USB 2.0 USB 2.0 to RS485 RS-485 RS422 RS-422 DB9 COM Serial Port Device Converter Adapter Cable, Prolific PL2303, Shipping
Quick View
  •  
  • $56.51 –
  • Free Shipping
USB B-Port Printing Port Male to DB9 Male RS232 Serial Cable DB9 to USB B-Type Data Transmission Printer Adapter Cable 5Meter
Quick View
  •  
  • $69.33 –
  • Free Shipping
USB to RS232 cable COM Port Serial 9 Pin DB9 Cable Adapter Converter PROLIFIC-PL2303 usb2.0 to RS232 cable
Quick View
  •  
  • $18.99 –
  • Free Shipping
WISDUM FT232H USB to JTAG High-Speed Multifunction Serial Port Module SPI/I2C UART/FIFO SPI/I2C
Quick View
  •  
  • $20.77 –
  • Free Shipping
Sunix 4056P Serial card one-to-four lines breakout cable 4-Port Serial RS-232 Adapter
Quick View
  •  
  • $23.83 –
  • Free Shipping
USB to RS232 cable COM Port Serial 9 Pin DB9 Cable Adapter Converter PROLIFIC-PL2303 usb2.0 to RS232 cable
Quick View
  •  
  • $18.99 –
  • Free Shipping
RS232 Splitter, DTECH 4 Port Serial Expansion Box 1x4 COM Port Expander with Power Adapter for Sharing PCs and Capture Data
Quick View
  •  
  • $126.43 –
  • Free Shipping
FOR USB 2.0 USB 2.0 to RS485 RS-485 RS422 RS-422 DB9 COM Serial Port Device Converter Adapter Cable, Prolific PL2303,
Quick View
  •  
  • $33.52 –
  • Free Shipping
FOR 10P to DB9 Serial Port Bracket MainBoard 10P to 9P RS232 DB9 Male Extension Line computer MotherBoard COM Extended line
Quick View
  •  
  • $18.99 –
  • Free Shipping
Cables Unlimited USB-2920 FTDI Chip USB2.0 to RS232 Com Port RS232 Serial Adapter
Quick View
  •  
  • $22.78 –
  • Free Shipping
HL-340 USB to RS232 COM Port Serial PDA 9 pin DB9 Cable Adapter support 7-64
Quick View
HL-340 USB to RS232 COM Port Serial PDA 9 pin DB9 Cable Adapter support 7-64

Limited time offer, ends 10/07

  • Model #: C43K-0420-3492
  •  
  • $18.99 –
  • Free Shipping