Hi I'm on OSX 10.10.5 with a Poseidon ZX. I downloaded your ZX driver and followed your instructions from the first page. After several tries I also looked in the IORegistryExplorer but was not able to find "TtEsports", "Poseidon", "ZX" I only have "USB Keyboard"
Please let me know what information you need from me and I'll gladly share it. Otherwise I'll have to return this keyboard.