Service Manual - Yamaha Outboard - 2 Stroke - 1997-09 Fireboard 400 is a 3-port 400Mbps FireWire Host PCI Adapter, based on the Texas Instruments TSB12LV21B (PCI Lynx 2) 1394 Link Controller to PCI Bus and TSB41AB3 1394 400Mbps PHY Layer Transceiver.