The Last Of The AGP Graphics Cards

What is this port ? I cant seem to find what it is, maybe a miniature ISA slot or a small AGP slot?

It seems that if an AGP video card is not slotted into it AGP slot If either of these things are not done, the card might not display an image

agp expansion slot Two shells create a disc form with a slot that houses the camera and parking AGP; APTIV; ART; ASK; BOSCH; BREMBO; BRIDGESTONE; BURMESTER; CPC; FAURECIA

agp slot full form Photo about AGP slot computer socket for accelerated graphics card Image of graphic, accelerated, science