A:AnswerIt works with my PlayStation 4 Slim. The drive formatted in seconds to use. Sony states to keep using the internal drive only for downloading purchased games. I'm currently using the external drive for updates & saved data for my games.
A:AnswerPlug it in open disk utility select the drive (make sure you choose the right one) click erase, it should present you with formatting options. Standard for Mac OS is Mac OS Extended (Journaled), if performance if a tiny bit of performance isn't critical I would also recommend encryption.
A:AnswerModel: WDBBGB0040HBK-NESN SKU: 5605524 is MAC compatible, physically larger and a bit heavier than the other model, stands upright like a book on a shelf and the model line capacity is 3, 4, 6 and 8 TB.
Model: WDBYFT0040BBK-WESN SKU: 5605533 in not MAC compatible [out of the box, but a MAC format operation could make it so], lays flat and the model line capacity is 1, 2, 3 and 4 TB. While a very reliable and durable external drive, this model is a step down in capacity and OS compatibility. However; if portability is a factor, this is the better item if you don't need greater than 4TB of storage.