• px 275 pcie 8xrs232 db25 1mbaud
  • PX 275 Lynx cable 8x25 Pin Comes with product
  • PX 275 RS 232 25 Pin Pinout
px 275 pcie 8xrs232 db25 1mbaud
  • 8 Port RS-232 Serial Card
  • PCI Express (PCIe) Card
  • Includes 8 port cable DB25 connection
  • Data rate from 110 to 921,600 baud
  • Drivers for all popular operating systems including Windows 10,8,7, XP and 2000
  • Lifetime Warranty and Support
  • PX-275-datasheet (0.74 MB)
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PCI Express Card providing eight RS232 serial ports connected using 25 pin cables. Data transfer rates up to 921,600 baud rates and the 128 byte deep transmit and 128 byte receive FIFOS, coupled with 1Mbit/s line drivers deliver uncompromising performance on your PC. Drivers for Windows 32 bit and 64 bit Operating Systems including Windows 2000, XP, Server 2003, Vista, Server 2008, Windows 7, Windows 8 and Windows 10.

Customer Feedback

Operating Systems

Tech Spec

Serial Port
ConnectorDB25 Connector - 25 Pin Male
UARTBrainboxes 16C958
UART Compatibility16750/16550/16450 backwards compatible as well as an enhanced 950 mode
Tx FIFO Size32
Rx FIFO Size32
Operating DistanceEIA - RS232 Standard
Cable8 port cable (78 way D to 8x25 Pin Male)
Serial Port Settings
Max Baud Rate921,600
Data Bits5,6,7 or 8
ParityOdd, Even, None, Mark or Space
Stop Bits1, 1.5 or 2
Tx/Rx ModesPoint to Point
PCB Layers4
Form FactorStandard Height
Includes Printer PortNo
Galvanic IsolationNo
Power Consumption490mA @ 3.3V, 210mA @ 12V
Product Weight0.120 kg, 4.23 ounces
Product Dimensions165x120x18 mm, 6.5x4.7x0.7 inches
Packaged Weight1.198 kg, 42.26 ounces
Packaged Dimensions300x135x80 mm, 11.8x5.3x3.1 inches
GTIN (barcode)837324000245
Operating System Compatibility
Operating Systems
  • Microsoft Windows 10
  • Microsoft Windows 8 32 bit & 64 bit Editions
  • Microsoft Windows 7 32 bit & 64 bit Editions
  • Windows Server 2008 32 bit & 64 bit Editions
  • Windows Vista 32 bit & 64 bit Editions
  • Windows XP 32 bit & 64 bit Editions
  • Microsoft Windows 2000
PCI Express x1, x4, x8 & x16 lane slotsPCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCI-E or PCIe, is a computer expansion card standard introduced by Intel in 2004. All Brainboxes PX cards are PCI Express Base Specification 1.1 Compliant.


Microsoft Signed Drivers

Microsoft Hardware