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Green PCB expansion card with metal bracket and two 9-pin serial ports

SIIG, Inc

SIIG, Inc JJ-P02012 PCI to Serial Port Card

SKU CH-T4BM-CZ6PQ MPN JJ-P02012

Adds two 9-pin RS232 serial ports via PCI with up to 230 Kbps and 5V or 12V power output for scanners and POS displays

  • External connectorsTwo 9-pin RS232 serial ports
  • Transfer speedUp to 230 kbit/s
  • Supported operating systemsWindows 95/98/98 SE/ME/NT4.0/2000/XP/Server 2003
  • Product typePCI to Serial Port Card
  • Key featuresSupports 32-/64-bit, 3.3 V/5 V PCI and PCI-X slots Will work
  • Adds two 9-pin RS232 serial ports via PCI
  • Up to 230 Kbps data transfer rate per port
  • Fits 32-bit and 64-bit PCI or PCI-X slots
  • Supports 3.3 V and 5 V PCI signalling voltages
  • Optional 5 V or 12 V power on pins for scanners and POS displays

PCI to Serial Port Card

The SIIG CyberSerial Dual JJ-P02012 adds two 9-pin RS232 ports to a desktop system through a standard PCI slot. It targets users maintaining legacy industrial equipment, point-of-sale hardware, or older peripherals that still rely on serial connectivity. The card fits 32-bit or 64-bit PCI and PCI-X slots operating at 3.3V or 5V. It supports Windows platforms from 95 through Server 2003.

Capacity and headroom

Each port delivers up to 230 Kbps, which is sufficient for barcode scanners, receipt printers, and basic data-logging devices. The dual-port design lets two peripherals operate simultaneously without sharing bandwidth. Performance drops off when applications demand sustained throughput above the rated speed or when modern operating systems beyond the supported list are used. Jumper-configurable 5V or 12V power output on the ports can supply attached devices directly.

Thermals noise and power

As a passive add-in card with no moving parts, it produces no audible noise and adds negligible heat to the chassis. Power draw is limited to the PCI bus supply, requiring no external connectors or additional cooling. The low-profile bracket allows installation in compact cases where airflow is restricted. Operation remains stable within standard desktop temperature ranges.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $40.99
Pricier than about 63% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameSIIG
Product lineCyberSerial Dual
Model nameJJ-P02012
Product typePCI to Serial Port Card
Performance
Transfer speedUp to 230 kbit/s
Ports & slots
External connectorsTwo 9-pin RS232 serial ports
Size & build
Shipping weight0.26 kg
Package size279 × 254 × 102 mm
Compatibility
Supported operating systemsWindows 95/98/98 SE/ME/NT4.0/2000/XP/Server 2003

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