Western Digital makes you change some settings if you're using this with a Mac. In years past you could just reformat the drive now they make you play IT and boot your Mac in recovery mode. I've done this before but this is a major inconvenience if you're not confident in your ability to do this. It's easy but also a big hassle just to use a plug and play drive. Also my particular drive is making a clicking sound every minute or so. This means the drive is going to fail soon. I will be wiping the drive and returning it tomorrow. WD has fallen off in the past few years I should have known not to buy this when there were tons on the shelf.

i bought this 5 tb western digital external hard drive and it did not start up. after several attempts to reinstall and checking with western digital, i still got nowhere. it did not work. i am returning to sams club. hopefully your experience is better.

I've been a tech person for a long time due to occupation (pharmaceutical research) and avocation. Thus I've experienced the rapid increase in storage capacity and migration of external formats. I actually used the old black floppy disks and everything up to now. Recently I was in the club and noticed the WD My Passport. The cost was essentially a $100.00 and I was astonished that a tiny HDD of 5TB capacity with a footprint smaller than a pack of cigarettes (I don't smoke) was even possible. Crazier was the installation of the supplied software and operation. I backed up my old Dell business laptop as a test case and despite a ridiculous amount of data. It took less than an hour for all to be copied - OS, videos, music, pictures, documents, ............. I'm still in disbelief, but not so much that I didn't hesitate to order two more from Sam's Club online. I could not find a better value and there is no better value than Sam's Club + customer service. I need to research what is going on inside this small miracle. There is no sound of a disk turning or stylus transferring data. The only clue that the device is operating is a very small pilot LED on the cable side. No heat, no sounds, no vibration. It must be magic or at least to my comprehension. It's heavy for its size and the aesthetics are very attractive. It feels good in your hand like a favorite tool. Anyway, it's pretty cool and a great value I never expected to see in my lifetime. I'm old, but technology and grandkids are two of the most wonderful things that make sticking around worthwhile.

Great to have for extra space and easy to use.

Died after a week of being plugged in with light backup duty.

It's working great so far! We got it to back our cloud storage to and its working beautifully.

great price, good product

Works fine, using it off an HDHOMERUN FLEX 4K to record TV. Quiet, and doesn't get hot.

Works as it should. Needed to move pictures and video from wifes phone. Plenty of space

I purchased this to save recordings on my Tablo DVR device. It was easily formatted by the Tablo and has been working as expected.