WD My Cloud EX4100 Diskless Expert Series with different capacity drives in JBOD or Spanning Mode

Will “WD My Cloud EX4100 Diskless Expert Series” would work with different capacity (like 1x2TB, 1x1.5TB and 2x500GB) hard disks (of same brand and same speed 7200RPM) in JBOD, RAID 0 or Spanning mode ?

Unfortunately, the unit does not support 7200 RPM hard drives. It does support RAID volumes using different disks, but the size of the volume will be as large as the smallest disk in the array.