Connects one IDE CD/DVD or hard drive and supports speed up to 133MBps. This premium improved-airflow round internal cable has 40 twisted pairs, silver braid shielding with translucent PVC jacket and allows you to connect your IDE devices with minimal clutter. It is coated with flexible material for better wiring protection, reduces heat & saves space within the CPU, and make it easy to add or remove hard drives & add-on cards. Recommended for high performance PC and high-density rack mount servers. (Connectors: 2 IDC40 Female - 0, 18 Inches; Color: Silver)