Wanted to report in and let folks know the cables have arrived safe and sound!  I'll be putting orders together for the rest of the night for shipment tomorrow.    I wouldn't sell something I wouldn't use myself, so I've tested these out on a 10-pack of Gridseeds of my own and they are working great!  There are still some left, so these are now for sale for immediate shipment!

http://www.bobsbitcoinsupply.com/Gridseed-Accessories_c4.htm