will a mini humbucker fit in a p90 slot - Identify a variety of PCI slots tt slot 888

A 1x PCI-E expansion card will fit into a 16x slot. The physical size difference will leave the rest of the slot unoccupied, but this is normal.

DiMarzio's Fantom will fit using the standard P-90's screws, but requires some headache-inducing wiring to get a series humbucker sound; the other humbucker ...

In many cases, these expansion cards will fit in a slot in the computer called a PCI slot. However, in the case of video cards and a few others, they may fit into other types of slots, like an AGP (Accelerated Graphics Port) slot or a slot.