Western Digital released today in Japan its new SSD series the WD Blue SSD with 1TB, 500GB and 250GB storage capacity.
Depends on the size you can buy the series ATA versions between 8 980 Yen and 32 980 Yen (with tax) or the M.2 SSD editions between 10 580 Yen and 33 980 Yen (with tax) from the Japan Amazon.