This 18in IDE Drive Cable is designed to fit as a new or replacement hard drive/CD-ROM cable in almost any size of computer case. The cable features a rounded design that can help increase airflow capabilities within the computer case, and provide easier access to internal computer components. The rounded IDE cable provides two 40-pin female drive connectors, for connecting both a master and slave device to the motherboard IDE bus through a single cable, saving the install space and cost of a second cable. Providing a cost-effective solution for connecting Ultra ATA 66/100/133 drives, this high quality IDE cable is backed by StarTech.com's Lifetime Warranty.