MBA auto-ejecting USB-powered external HD
I have a new Apple-refurbished MacBook Air. When I plugged in a certain 2.5 inch USB-powered external hard drive, it would briefly mount on the desktop, and then disappear with the "Did not properly eject" error message. It will then reconnect and immediately disappear again. When I plug the hard drive into two other MacBook Pros (both running 10.9), it works fine. Also, a different USB-powered external hard drive worked fine with the MBA.
I am new to MBAs. Do they not work with some USB-powered drives? Could it be a Yosemite thing?
Computer Info:
13-inch, Mid 2013
OSX 10.10.2
500 GB Flash Storage
Processor 1.7 GHz Intel Core i7
Memory 8 GB 1600 MHz DDR3
External HD Info:
Western Digital (WD)
"My Passport"
WDBABM7500ABK-00
USB 2.0
http://support.wdc.com/product/install.asp?groupid=212&lang=en
MacBook Air, OS X Yosemite (10.10.2), 13-inch, Mid 2013