Cables Unlimited 36-Inch IDE Dual Device 40 Pin ATA UDMA133 Cable High quality, internal ATA 133 cables used to connect high performance hard drives and CD-ROMs TPO jacketed cables support up to 133Mbps transfer rates Allows 2 internal ATA/133 IDE hard drives to be connected to a controller card Color coded connectors for easy installation with red line on side to indicate pin one Fully tested and certified to meet or exceed industry standards