roxy54,
wp.neotechcables.com, then click on the three lines in the top right hand corner and then click on rectangular cables the Amazon is the silver rectangular OCC and the Sahara is the copper rectangular OCC wire, I got the Sahara speaker wire and interconnects and it's far superior to my round OCC from Harmonic technology and I was using their top of the line pro nine SE speaker wire and magic ll interconnects, this rectangular stuff is a real game changer, I talked to the distributor here in Canada for Neotech and he told me that one of his retailers put the Amazon up against an $18,000 wire that he was also selling and that the Amazon was better for half the price $9,000 US is still a lot of money but all I can tell you is this rectangular stuff is amazing,far superior than anything ofc at any price on the market that companies like transparent are charging an arm and leg for crappy ofc conductors, just so you know Neotech supplies pretty much all the companies that are using OCC single crystal wire with their conductors.