Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers. 25 Twisted Pairs. Once the standard for high bandwidth throughput connections between mass storage devices SCSI technology evolved to include a vast array of ever improving standards with complex combinations of connection standards. SCSI is still widely used on many legacy systems but finding the right type of cable for your system can be difficult.