- cheaper (much cheaper on Rakuten, like JPY2,500 compared to the Silverstone),
- had more connectors on the SATA power cable (4 vs. 3) and
- had a fan that was always running (compared to semi-silent one on the Silverstone).
But the Silverstone one
- had all Japanese caps,
- had shorter power cables and
- was from a well-known manufacturer (not OEM, mind you) in the field of PSUs.