Report Poseidon Z driver for Mac OS X 10.10+ in Mechanical Posted July 11, 2015 IOUSB:/POSEIDON ZX Illuminated@14100000 Mine doesn't work either. Maybe I failed at step 0 ? How to know if succeed in disable the signature? I got the same OSX, I think it should work. update, Thanks very much! can you read some information from my screen shot? Is the Driver installed properly?