Razer Nommo V2 X not working wityh AE-5 Plus Sound card

Hey! I have myself the Razer Nommo V2 X speakers. I connected my sound card as the manual said with all the cables and all the RGB lights are working as they should. However, when it came to connecting the speakers I had a problem. The speakers are not analog so I thought I could fix that problem by buying adaptors ( USB to analog ) but they still do not work. I can not hear anything from the speakers when I select the SoundBlaster AE-5 Plus option on the speaker setting. Can you please help me fix this problem because I really want to use the speakers through the new sound card and not the motherboard sound card. Thanks!