How to pronounce 插槽 in Cantonese (4 out of 6):

配合3條PCI-E 4.0插槽
It comes with three PCI-E 4.0 slots.

Cantonese Sentence Breakdown

配合 pui3 hap6
cooperate
tiu5
strip
item
article
clause (of law or treaty)
classifier for long thin things (ribbon, river, road, trousers, people (in slangs) etc)
order
orderliness
ten dollars
插槽 caap3 cou3
slot