Ok had my R9000 delivered last week and also managed to buy a genuine 200-240v Netgear charger for the R9000 from China.
I actually bought a R8500 charger as it uses the same power output (19v) and
isn't the brick type, i.e. the transformer is built-in at the plug. The one i bought still had a US plug but at least it was 200-240v with the correct output. I bought it from here (plenty more in stock)
https://world.taobao.com/item/530566592890.htm
but had to use bhiner.com agency to buy it for me from China and ship it to UK as my Chinese is non-existent!! Cost about $25 incl. shipping to UK. Netgear part number is 332-10634-01.
Of course I could have bought 3rd party adaptor on ebay but all of them are brick type and being non genuine, i wouldn't be sure of the quality...i cannot risk blowing up a $375 router.
As for the R9000 just one word: WOW!!! This beast is amazing for 2.4ghz & 5ghz wifi coverage, blows the pants off other QCA based routers I've used, such the R7800 and Linksys EA8500.