Computer won't recognize radio

I've plugged my USB cable into my radio and my Mac, and I get no indication from my computer that it recognizes the radio. when I run the Chirp software, it says the radio did not respond.

I purchased the cable from Amazon and it says it is an authentic Baofeng cable. The driver disc it came with is only for Windows. I tried downloading a driver from a different site, (not 100% certain it was the correct driver, but I believe so.) Still no luck. 

Any ideas?