Partial Correction - numbers - according to https://en.wikipedia.org/wiki/MacBook_Pro#Technical_specific... 15"MBP use 2 TB3 chips, one per pair of USBc ports. This raises the total of PCIe lanes to 16 which corresponds to the max affordance of the i7 Cores used https://ark.intel.com/products/97185/Intel-Core-i7-7700HQ-Pr...