How to add PCI cards to FUJITSU SIEMENS ESPRIMO E7935 desktop computer

DESKTOP COMPUTERS WITH PCI SLOTS: https://amzn.to/4cYTTo2
If you're used to just shoving in PCI cards into PCI slots on a motherboard, you might be a bit confused at first when you open the Fujitso Siemens Esprimo E7935 computer. Hidden away and covered by a metal piece, it might take you a while to figure out what's going on under the hood of this computer. But soon you'll realise that the piece of metal that seems in the way, is actually an adapter into which you should actually be plugging the PCI cards into, and then the adapter plugs into the PCI slot of the motherboard. This is done to change the alignment of the PCI cards, so they line up with the openings you can open up on the computer case.