Best adapter GC for Dolphin? (solved)

[GuenosNoLife]

Hello, 

I search a best adapter without input-lag, 100% work with good calibrate and I don't know choice official or unofficial:
- Unofficial : https://www.amazon.fr/Adaptateur-Manette-Gamecube-pour-Wii/dp/B00RSXRLUE/ref=cm_cr_arp_d_product_top?ie=UTF8
- Official : https://www.amazon.fr/Adaptateur-Manette-Gamecube-pour-Wii/dp/B00O9QW4JQ/ref=cm_cr_arp_d_product_sims?ie=UTF8

I want to play with 3 friends (total 4 players 4 controllers) in multiplayer local on games of GameCube at 4 players (Mario Party 5, Mario Kart: Double Dash! and another)

I have two controller Official GameCube

Thank you!


Edit:
I found a news about Official Adapter : http://www.pcgamer.com/dolphin-emulator-now-has-native-gamecube-controller-support-thanks-to-nintendos-wii-u-adapter/
But my question is: This adapter with Dolphin Emulator work in other games ? Because I'm not interesting about SSB.