In the spec they talk about 8-links each is 16 bit(or lanes in their jargon) , which comes out to 128 bit (or 256 bit - there are some configurations where inp

In the spec they talk about 8-links each is 16 bit(or lanes in their jargon) , which comes out to 128 bit (or 256 bit - there are some configurations where input and output bits are on different pins).