Apple FireWire 400 Cable Apple Rescue of Denver » Products Page » G3 to G5 » Cables & Adapters (G3 to G5) » Apple FireWire 400 Cable 6 Pin to 4 Pin Apple 590-2286, M8706G/A. Firewire 400 cable 6 pin to 4 pin. Used to connect video cameras to your Mac. This was an optional accessory for many years. May be new or used. Product in stock Price: $10.00 Updating cart... Updating...