Thanks to Audiophonics for fast, trouble-free shipping to the United States.
Two sets of 4 connectors were purchased for use with NeoTech NEI-3004 cable. The connectors were very nicely packaged in a well padded tin, and are of excellent quality. Mounting the cable was trouble free with my ordinary soldering skills. The Audiophonics web site implies the maximum cable size these connectors will take is 10mm. It will actually take much larger which is a huge plus if you like big cables. I would have purchase the 10.5mm NEI-3001 cable if I knew it would fit. It wasn't until I got the connectors that I saw (in the description) it would take up to 13.5mm.