CyberSerial 4S 550 PCI with connector bracket

Double click on above image to view full picture

Zoom Out
Zoom In


  • CyberSerial 4S 550 PCI with connector bracket
  • CyberSerial 4S 550 PCI

CyberSerial 4S 550 PCI


Quantity in stock: 406


+ Add to Wishlist + Add to Compare


Adds four serial ports (9-pin) to your computer


SIIG’s CyberSerial 4S 550 PCI serial adapter card is an excellent solution for you to connect multiple serial-based devices to your system.  It is designed to add four 9-pin (DB9) serial ports to your PCI-enabled desktop computer.  This 4-port serial adapter card comes with four high-speed 16550 UART serial ports supporting data transfer rates up to 230Kb/s.  The serial ports can work as either standard DB9 RS232 ports, or can be configured with 5V /12V power outputs for devices that require power such as handheld scanners, table scanners, and POS displays.  The CyberSerial 4S 550 PCI adapter card features IRQ sharing to reduce IRQ conflicts, built-in 32-byte FIFO buffers to dramatically increase data transmit/receive speed especially under Windows multitasking environment, and PME (Power Management Event) to allow device to request a change in system power state (wake up system).  It comes with an enhanced bending-resistant bracket to provide a more secure connection to the system, and it works with 32-/64-bit, 3.3v/5v PCI and PCI-X slot.

Industry standards met by this Oxford OXuPCI954 powered serial adapter card include PCI Local Bus Specification, Revision 3.0, RoHS, and FCC Class B (DoC) & CE regulatory approved.  Backed by SIIG’s limited lifetime warranty and compatible with a wide variety of Windows operating systems, the CyberSerial 4S 550 PCI is the best-value serial adapter card in the market for connecting a wide variety of serial devices.


  • Supports 32-/64-bit, 3.3V/5V PCI and PCI-X slots
  • Four high-speed 16550 UART serial ports (9-pin) support data rate up to 230Kb/s
  • Will work as standard RS232 port or with 5V or 12V power output for devices that require power (such as handheld scanners, table scanners, POS displays, etc.). Configurable via jumpers with silk-screened settings on PCB


  • Compliant with PCI Local Bus Specification, Revision 3.0
  • Compliant with PCI Power Management Specification, Revision 1.1
  • Chip: Oxford OXuPCI954
  • Bus type: 32-bit PCI
  • Port type: Four 9-pin RS232 serial ports
  • IRQ sharing reduces IRQ conflicts
  • Built-in 32-byte FIFO buffers dramatically increase data transmit/receive speed, especially under Windows multitasking environment
  • Supports 3.3V operation with 5V tolerance
  • Product dimensions: 5.28" x 4.72" x 0.87"
  • Product weight: 3 oz (81 g)
  • Certifications/Standards: FCC, CE, RoHS
  • Warranty: Lifetime Limited
  • Country of origin: China


  • Desktop PC with an available 32-/64-bit PCI or PCI-X slot
  • Windows® 8 (32-/64-bit) / 7 (32-/64-bit) / Vista (32-/64-bit) / XP (32-/64-bit) / Server 2003 & 2008 (32-/64-bit) / Server 2008 R2 / 2000 / NT 4.0 / ME / 98SE / 98 / 95

Package Contents

  • CyberSerial 4S 550 PCI
  • Connector bracket with two 9-pin (DB9) connectors
  • Voltage jumpers (4)
  • Driver CD
  • Installation guide

Channel Product Codes

  • Ingram Micro: DN2088
  • Tech Data: 10537834
  • D&H: JJP45012S7
  • ASI: 104492
  • Synnex: 2750780