?Specifically designed for desktop PCs and workstations with the Ultra DMA, UDMA-2 (66 MB/s), or Ultra ATA 133 MB/s disk drive interfaces, the ultra cable assembly from Cpu Stuff significantly enhances system performance by increasing READ/WRITE data transfer speeds by 95% and 56%, respectively. Our cables provides more reliable data transfer by eliminating errors and reducing signal crosstalk at drive speeds of 33 MB/s and higher. ?You can use cable select with our cables.?80 conductor solid cable. ?Connectors will have the same orientation as in the picture. Custom orientation available upon request. ?100% Tested.?Our cable assemblies also comes in 80 conductors stranded cable for more flexibility.