Three Parallel ATA (PATA) IDE 40-pin 80-conductor ribbon cables (standard 80-conductor Ultra DMA IDE/PATA interface cable) with double connectors for two devices. This cable supports the newest PATA 133 IDE hard drives. Cables are 17" long (5.75 and 11.25 inches between connectors). Note: This cable has pin 20 blocked per PATA standard. Their is also a small discontinuity on the cable near the connector which is by design and is not an imperfection.