imac 2017 usb-c to hdmi adapter

[zyzz25]

hi,

i need a usb-c to hmdi adapter for my 2017 imac.

it must support 4k at 60hz and 5.1 surround sound

i already tried these two: with the first one the sound stops from time to time but the pictures plays
and the one from amazon doesnt give me 5.1 sound, just 2.0

https://www.amazon.de/gp/product/B01MYUCWOK/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
https://www.amazon.de/gp/product/B01M3PTUV6/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1


what can you recommend me?

 

[PJivan]

UP!

after buying a CHOETECH cable that didn't work I would like to hear someone who have this working fine... I'm ok with 1080p 60hz but it has to work in both bootcamp and os x