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[ IEEE 1394 CONTROLLER // EXPANSION CARDS ]

SIIG NN-FW0012-S1

Three-port PCIe IEEE 1394b controller with three 9-pin FireWire 800 connectors. Verify the exact board label and revision before service.

Original local schematic of SIIG NN-FW0012-S1; not a product photograph or dimensional drawing
ORIGINAL LOCAL SCHEMATIC // NOT TO SCALE OR A PRODUCT PHOTOGRAPH

MODEL SCOPE: SIIG NN-FW0012-S1. Specification distinctions below identify 1394a/1394b rates, physical bus and power limitations; host OS and driver support can change by revision and release.

Specifications and compatibility

Exact model / SKUSIIG NN-FW0012-S1
Controller chipsetTI single-chip IEEE 1394 controller (SIIG product listing does not name the silicon part number).
PCI bus / lanesPCI Express 1.0 x1.
IEEE 1394a rateBilingual 9-pin ports interoperate with IEEE 1394a / FireWire 400 devices at up to 400 Mb/s using suitable cabling.
IEEE 1394b rateIEEE 1394b / FireWire 800, up to 800 Mb/s per link.
Ports and connectorsThree external 9-pin IEEE 1394b connectors.
Power / bus-power notesThe product listing does not specify auxiliary card power or per-port current limits. 9-pin connectors can carry bus power only within the card’s implemented and host-supplied limits; check SIIG documentation and peripheral requirements.
OS driver compatibilitySIIG product documentation advertises OS support by release; use its current driver/download notes and the platform OHCI driver where applicable. Validate the exact Windows/macOS/Linux version, because discontinued hardware may not have current vendor support.
Host compatibilityPCIe 1.0 x1 interface; the manufacturer lists full- and low-profile bracket options. A compatible PCIe slot, OS OHCI driver and suitable bilingual cable are required.

Installation and archival notes

  • Match the card’s printed model/revision and connector layout to the cited maker documentation; do not infer a controller IC or current limit from the connector alone.
  • IEEE 1394 link rate is negotiated with the peripheral and cable. A FireWire 800 connector does not make a 400-Mb/s device or cable operate at 800 Mb/s.
  • Use ESD precautions; validate system bus wiring, driver version, peripheral power source, and application-level compatibility before replacing a working legacy host.

Manufacturer and standards sources

  1. SIIG — NN-FW0012-S1 product specificationsManufacturer product reference for the named part; check the specific board revision and documentation availability.
  2. SIIG — FireWire 800 PCIe manualAdditional maker documentation or official model-family reference.
  3. IEEE — IEEE 1394-2008 standardIEEE 1394 bus/protocol standard reference; card-level details are in the manufacturer documentation.
  4. Linux kernel — FireWire subsystem documentationOHCI/FireWire software-driver reference; platform-specific support remains OS-release dependent.