CRS317-1G-16S+RM - 5m Twinax support?

Hello,

MT sells the 1m and 3m Twinax cables.
But I don’t see 5m.
I don’t see specifications which details max length.
Another vendor, I will not mention, makes and supports 5m, although the cabling for 5m are much thicker.
Has this been tested?
I assume 5m is maximum for passive twinax, but just want to know that this is supported.

Also, I don’t see a 10BaseT SFP+ listed in the accessories.
Has this been tested? A supported vendor product?

Thank you.