HP F4640-60953 - Bottom case (chassis) assembly - Defeatured (for models without IEEE-1394 / FireWire) Retail
HP F4640-60971 - Bottom case (chassis) assembly - Full featured (for models with IEEE-1394 / FireWire) Retail
HP F3925-60962 - Bottom case (lower chassis) assembly - For models with IEEE-1394 (FireWire) only - (Hurricane 3.0, defeatured) Retail
HP F3925-60961 - Bottom case (lower chassis) assembly - For models with audio control buttons and IEEE-1394 (FireWire) - (Hurricane 3.0, full featur Retail