There is not. Your will most likely never saturate your gig connection (If its symmetric). I dont think that’s the most important part as the chunks are so small so you would need hundreds of thousands connections to make the connection a part of the formula.
Its more important that your storage system can deliver the chunks quickly and as I’m sure you understand that involves I/O.
The most important part of the formula is where you live. If you have a 100TB storage note with 10 Gigabit fiber in the middle of the Sahara desert … well that is not the same has having one in Manhattan, NY…