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

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

Sort By:
View:
StarTech.com PEX1S953LP 1 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible
Quick View
StarTech.com PEX1S953LP 1 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible
  • Type: PCI Express to Serial Port Card
  • External Ports: 1 x DB-9 (9 pin, D-Sub) Male
  • Internal Ports: 1 x LP4 (4 pin; Large Drive Power) Male Input 1 x PCI Express x1 Male
  • Operating Systems Supported: Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.4.x to 2.6.x LTS Versions only
  • Model #: PEX1S953LP
StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 Model PEX4S232485
Quick View
StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 Model PEX4S232485
  • Type: PCI Express to Serial Port Card
  • External Ports: 2 x RS232 2 x RS422 / RS485
  • Operating Systems Supported: Windows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64), 2000 Windows Server 2008 R2, 2003(32/64) Linux Kernel 2.6.x
  • Specifications: Data Bits: 5, 6, 7, 8 FIFO: 256 Bytes Flow Control: None, Xon/Xoff, RTS/CTS Max Baud Rate: 460.8 Kbps Parity: None, Odd, Even, Space, Mark Serial Protocol: RS-232/422/485 Stop Bits: 1, 1.5, 2 Supported Protocols: RS-232, RS-422, RS-485 2-wire / 4-wire
  • Model #: PEX4S232485
  •  
  • $151.99 
  • Free Shipping
StarTech.com PEX2S953LP 2 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible
Quick View
StarTech.com PEX2S953LP 2 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible
  • Type: PCI Express to Serial Port Card
  • External Ports: 2 x DB-9 (9 pin, D-Sub) Male
  • Internal Ports: 1 x LP4 (4 pin; Large Drive Power) Male Input 1 x PCI Express x1 Male
  • Operating Systems Supported: Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.4.x to 2.6.x LTS Versions only
  • Model #: PEX2S953LP
2 Port RS-232 Serial to USB Adapter Cable, FTDI Chipset, 5ft Length, ESD Protection, Windows/macOS/Linux Compatible
Quick View
2 Port RS-232 Serial to USB Adapter Cable, FTDI Chipset, 5ft Length, ESD Protection, Windows/macOS/Linux Compatible
  • Brand: Gearmo
  • Part Number: USA-FTDI2X
  • Color: Black
  • Dimensions: 4.191 in x 13.589 in x 18.1102 in
  • Model #: 701949729599
  •  
  • $65.99 
  • Free Shipping
Ethernet Network Serial Port Converter RJ45 to RS232 RS485 RS422 Industrial Device Server Support TCP/RTU/UDP with Power Cable
Quick View
  •  
  • $47.95 
  • Free Shipping
  • $46.55 - $47.95
USB to Serial Adapter Cable RS232 DB9 Male Port with FTDI FT232RL Chipset Supports Windows 11 10 8 7 and Mac Linux (1.5 Feet)
Quick View
  •  
  • $31.99 
  • Free Shipping
StarTech PEX16S550LP PCI Express Serial Card - 16 Port Low-Profile Serial Card - High-Speed PCIe Serial Adapter - Serial Controller DB9 RS232
Quick View
StarTech PEX16S550LP PCI Express Serial Card - 16 Port Low-Profile Serial Card - High-Speed PCIe Serial Adapter - Serial Controller DB9 RS232
  • Type: PCI Express
  • External Ports: 16 x DB-9 (9 pin, D-Sub) Male
  • Internal Ports: 1 x SP4 (4 pin, Small Drive Power) Male
  • Operating Systems Supported: Windows 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.6x to 4.2x LTS Versions only
  • Model #: PEX16S550LP
  •  
  • $422.99 
  • Free Shipping
StarTech.com ICUSB2322F USB to Serial Adapter - 2 Port - COM Port Retention - FTDI - USB to RS232 Adapter Cable - USB to Serial Converter
Quick View
RS232 Serial Port & DB25 Printer Parallel Port to PCI-E Card Adapter Converter
Quick View
RS232 Serial Port & DB25 Printer Parallel Port to PCI-E Card Adapter Converter

Limited time offer, ends 07/12

  • Model #: IW-ADD-convert-84
  •  
  • $34.99 
  • Free Shipping
PCI Serial Card 2 Port RS232 Industrial PCI Serial Port Card PCI to COM Ports 9Pin RS-232 Serial Expansion Card
Quick View
  •  
  • $74.99 
  • Free Shipping
SERIALGEAR USB to Serial 4-Port DB-9 RS-232 Adapter with FTDI Chipset
Quick View
SERIALGEAR USB to Serial 4-Port DB-9 RS-232 Adapter with FTDI Chipset
  • Color: Black
  • Changer Type: USB to DB9 (RS-232)
  • Model #: CS-42042
  •  
  • $109.88 
  • $5.99 Shipping
Vszerda FOR Serial Port to Ethernet Transparent Transmission Module ATK-UART2ETH Serial Server Network Port
Quick View
  •  
  • $41.99 
  • Free Shipping
FTDI Chip Isolated USB to TTL/RS232/RS485 3 IN 1 Serial Port Adapter Industrial-grade TTL RS-232 RS-485 Isolation
Quick View
  •  
  • $38.58 
  • Free Shipping
FOR USB2.0 to RS232 RS485 RS-485 RS422 RS-422 DB9 COM Serial Port Converter Adapter Cable chipset 1.8M (RS232/RS422/RS485)
Quick View
  •  
  • $85.99 
  • Free Shipping
  • $84.59 - $85.99
PCI Serial Port Card PCI To 2 Ports RS232 COM Converter Card
Quick View
PCI Serial Port Card PCI To 2 Ports RS232 COM Converter Card

Limited time offer, ends 07/19

  • Type: Controller Card
  • Model #: CL-HD-Addon-116
Vszerda FTDI Chip Isolated USB to TTL/RS232/RS485 3 IN 1 Serial Port Adapter Industrial-grade TTL RS-232 RS-485 Isolation
Quick View
  •  
  • $48.99 
  • Free Shipping
SD2SP2 Pro TF Micro SD Card Reader Adapter for Nintendo GameCube NGC Serial Port 2
Quick View
  • $22.59
  •  
  • $13.90 
  • Save: $8.69 (38%)
  • Free Shipping
Direct from AJMRTC Direct from AJMRTC
Syba 8 Port RS-232 DB9 Serial M.2 B+M Key Controller Card - SI-ADA15071
Quick View
Syba 8 Port RS-232 DB9 Serial M.2 B+M Key Controller Card - SI-ADA15071
  • Type: Controller Card
  • External Ports: 8 x Serial Ports
  • Operating Systems Supported: Windows 10 or Higher Ubuntu 19.04 or Higher
  • Package Contents: 8 Port Serial DB9 M.2 B+M Key Module Driver CD x1 Manual x1
  • Model #: SI-ADA15071
16 Port Rack Mountable RS-232 USB-to-Serial Adapter with Built in Power Supply
Quick View
  •  
  • $737.99 
  • Free Shipping
USB 4-Port Serial Adapter/USB 2.0 Quad Port Serial DB-9 RS-232
Quick View
  •  
  • $225.99 
  • Free Shipping