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Syba > 
Item#: N82E16815124127

SYBA 2 Serial 1 Parallel PCI-e Controller Card with Low Profile Brackets Model SI-PEX50054

  • PCI Express to Parallel / Serial Port

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  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Syba SI-PEX50054




PCI Express to Parallel / Serial Port
External USB Ports
PCI Express
External Ports
2 x Serial Ports + 1 x Parallel Port


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

Supports PCI-e Power Management

Serial Port:
2 16c450/550/Extended 550 Compatible UARTs
Supports RS232 Modes
Bi-directional Speeds from 50bps to 16Mbps/Port
Full Serial Modem Control
Supports Hardware, Software Flow Control
5, 6, 7, 8 and 9-bit Serial Format Support
Support MODEM Modem Signals CTS, DSR, RI, DCD, the DTR, RTS, Convert RS232 Level
Even, Odd, None, Space & Mark Parity Supported
Custom BAUD Rates Supported with External Clock or by Programming Internal PLL
On Chip 256 Byte Depth FIFOs in Transmit, Receive Path of Each Serial Port
Support Remote Wakeup and Power management Features
Serial Port Transceiver Shutdown Support
Support Slow IrDA on all Serial Ports
IEEE1284 Parallel Port:
Multi-mode IEEE 1284 Compliant COntroller (SPP, Nibble, Byte, PS/2, EPP, ECP)
Faster Data Rates up to 1.5Mbps for Parallel Port

Dimensions & Weight



Package Contents
PCI-e Multi I/O Card
Full Size Bracket for 2 Serial Ports
Full Size Bracket for 1 Parallel Port
Low Profile Bracket for 1 COM Port
Low Profile Bracket for 1 Parallel Port
User Manual
Driver Mini CD
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the Syba SI-PEX50054

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  • William L.
  • 3/27/2016 7:30:01 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSerial ports work fine, haven't tried parallel port

Pros: This card provides serial ports at reasonable cost. Brackets for shorter mounting slots were included, along with related hardware and mini driver CD. Had to read instructions a couple of times to find correct driver install file for my Windows 7 PC, but once figured out, installation went OK. Setting aside the minor inconveniences mentioned, this was a really good purchase. Equipped two PCs with these cards.

Cons: The ribbon cables to the DB9 connectors can be accidentally reversed when plugged into the card. I traced them out with a meter to get them oriented correctly. Here's how to plug them in correctly: the ribbons exit their connectors on one side. Plug the ribbon connectors onto the card, so that the ribbons both exit their connectors on the PC motherboard side. If you've never done any hardware work before, don't forget to put these connectors on, so that all card pins mate with all ribbon connector receptacles.

Other Thoughts: Gave it 5 stars, because price and performance offset minor installation inconveniences.

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  • D D.
  • 3/15/2016 10:14:03 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGood little controller

Pros: Windows installed it without a hitch. Works like a charm for my older printer. Inexpensive.

Cons: None really...

Other Thoughts: It gives me exactly what I needed, a legacy parallel port which allows me to use an older printer.

Did you find this review helpful? Yes No

  • Richard E.
  • 9/12/2015 12:36:12 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsWorked out of box. Easy setup.

Pros: Worked out of the box. the drivers installed easly (Windows 8.2 and Windows 10)

Cons: The 9-pin cables could have been a little longer.

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Volume Discounts Available
  • 2-5 $15.69 ea.
  • 6-10 $15.29 ea.
  • 11+ $14.79 ea.

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Syba > 
Item#: N82E16815124127
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