Turns out, it just wasn’t in the right format. Yes, it had some software specifically made for OS X on it, but even that didn’t help.
When I bought the WD My Passport Ultra drive, I was surprised to see that it didn’t support OS X out of the box. More Space for iTunes and Photos SSD-based Mac computers are great, but sometimes you need more space for your ever-growing iTunes and Photos collections. The My Passport for Mac drive works with Apple Time Machine, and included WD Security software helps protect your data. Plug in your WD My Passport’s USB cable into its Micro USB B port.
Watch My Passport For Mac’S Reimagined Design Come To Life The reimagined My Passport for Mac drive will stop you in your tracks. And we back up (pardon the pun) the trusted My Passport for Mac drive with a 3-year limited warranty.
WD builds drives to demanding requirements for durability, shock tolerance and long-term reliability. We provide a downloadable HFS+ driver for Windows® 10, 8.1 or 7 to enable you to read and write to your My Passport Ultra for Mac drive without reformatting. With WD Discovery™ software, you can also work across both Mac and PC. My Passport Ultra for Mac is formatted for Time Machine and ready to deliver plug-and-play storage out of the box.