Anyone recall at what generation Transparent cable used metal for its network module?

Just curious, why? Trying to identify a cable? 

Does it make a difference?

I'm a sponge, what can I say...LOL

Regards

@oldhvymec - it's better to not responding to my question if you don't know anything on my question than providing an useless and nonconstructive feedback.

I remember back in the mid 90's my transparent reference cables had I believe aluminum network boxes, (2 per cable for interconnect cables) .

Thanks @fyud. Yeah I still have those and I think that's the Gen1.  After some digging from the reviews I  could found online I believe the only generation they were using aluminum for the network exterior is Gen1, after that they are all made by acrylic.