Well, the drives arrived today. I installed them in my MyCloud EX2 (non-Ultra) and got red lights on both drive LEDs. Not sure if that’s normal, because the drives were fresh, unpartitioned and unformatted(?) Anyway I went ahead and set them up as a RAID 1 array and the drives were partitioned and formated and… Two blue lights! The array is showing up as 10 TB. I’ll play some more with the system over the next few days but my initial thought is, yes, the MyCloud EX2 can handle 2x10TB drives!
