GO! MOD Molded Round Ultra ATA133 Cables from Cables To Go deliver the performance you demand from your new UDMA IDE drives. The Molded Round Cables minimize clutter therefore adding to increased airflow within your case, which helps to reduce overheating. The slim-line design saves internal space within the CPU unit for easy movement when adding or removing hard drives, PCI cards or other adapters. Not to mention the GO! MOD Molded round cables add style and pizzazz to any case!The new high-speed UDMA interface allows host computers to send and retrieve data faster removing bottlenecks associated with system performance. The 40-pin, 80-conductor Ultra ATA133 cable permits higher data transmission rates, reduces crosstalk, and improves signal integrity by providing 40 additional ground lines between the 40-pin IDE signal and the ground lines. Ultra ATA133 ribbon cables are designed for use with Ultra 133/100 and Ultra 66 drives, and backwards compatible with Ultra33, IDE/ATAPI hard drives, CD-ROMs, CD-R/CD-RWs, tape drives, zip drives, LS-120s and other IDE/ATAPI devices.