here's an even more complete clarification of the cubes on sale at haiyan's site
Haiyan's cube(I) = 甲1: Old Type A I.
Haiyan's cube(II) = 封2: New Type A II.
Haiyan's cube(III) = 封3: New Type A III.
Haiyan's cube(IV) = 模1: New Type A IV.
Haiyan's cube(V) = 甲5: New Type A V.
Haiyan's cube - Memory = 甲5+打磨: New Type A V + Sanding
Haiyan's cube - Haiyan = 海燕魔方: Haiyan's New Cube
sources: haiyan.
Haiyan's cube(I) = 甲1: Old Type A I.
Haiyan's cube(II) = 封2: New Type A II.
Haiyan's cube(III) = 封3: New Type A III.
Haiyan's cube(IV) = 模1: New Type A IV.
Haiyan's cube(V) = 甲5: New Type A V.
Haiyan's cube - Memory = 甲5+打磨: New Type A V + Sanding
Haiyan's cube - Haiyan = 海燕魔方: Haiyan's New Cube
sources: haiyan.