Back in the dark days before the ubiquity of USB1 there was a standard for connecting devices called SCSI. As time went on it ended up having multiple interfaces such as "Fast SCSI" and "Ultra SCSI" and so on. Which meant that along with having to understand the horrors that were device numbers and cable terminators your average techie ended up with a box of different SCSI cables, all of them outrageously expensive. This was made worse by the fact that over time you ended up with various "this-interface-to-that-interface" adapters and gender-benders, because those were cheaper than buying a new cable. It wasn't uncommon to have to take a cable out of your tangled box and then find an adapter (or two!) to fit either the particular interface on your SCSI card or the device. To put it in technical terms, it was a massive pain in the ass.