Nevermind, it is a masterlink. Heres the info on the chain I bought. The brand is EK.

MVX Series:Premium Quadra-X Ring Chains
We strongly recommend these Quadra-X Ring chains as the ideal replacement for the original equipment chain on your 600 to 1000cc sportbike. Features like solid bushings, lightening holes in the sideplates, large-diameter pins, and friction-reducing Quadra-X Rings help ensure high-performance and durability.
Recommended application: up 1000cc/100hp for 520MVXZ
.



Tensile strength:9000 lbs. for 520MVXZ
Available leght : 120