Any Focus dealer should be able to supply them, but I understand that is a bit tricky in the USA. This is the (German) company that supplies them to Focus
Leading Manufacturer of radio frequency, fiber-optic and high-voltage connectivity solutions providing the highest levels of efficiency in production, and modern manufacturing processes.
www.rosenberger.com
It would be worth contacting a Focus dealer in the UK to see if you could buy one from them.
Try JE James
Choose an e-bike for electric motor assistance as you pedal! Plus get your electric bike with 0% finance & free delivery from Rutland Cycling!
www.rutlandcycling.com
I have found both of them to be very helpful. It may be quicker to call them to make a special order, you won't find the item you want on their website, but their workshop should have them or be able to get one.
A lot of shops are closed at the moment, depending upon location due to the Covid-19 concern, so you may require a bit more persistence if you call.
Any luck with your Rosenberger connectors/lead hk3mcm?
I can't find the lead for my Ebooz trail extender and need to make one up (the old one was rubbish anyway).
Ebooz are out of stock, I've tried Rosenberger but they don't do retail and I can't find any of their retailers with any in stock.
I may have to cannibalise a tech pack lead if I can get one but Focus say "go to dealer" which I haven't done yet.
I think scavenging off two dead chargers would work. Being in the US makes it even harder. I want something like the BMZ but two female 90* plugs (like a TEC) so I can feed them through a frame pack.
Well would you believe, retraced the route I rode ten days ago when I lost my Ebooz connector lead and there it was, nestling in the hedge bottom where I had stopped for refreshments. Happy days.
Didn't check the route earlier as I was convinced I had misplaced it at home.