And quite possibly nothing other than
a) the price the vendors paid wholesale, and
b) the markups
or c) just packaging, which with and SSD often doesn't matter.
But there are 2 models of the neutron...the neutron xt and gtx. The latter is pushed as a high performance drive.
OOHH...I see it. Different markets. Look at the prices in detail...one inclues the little Ex VAT. That means excluding value added tax. US market doesn't use VAT.