pcie vs thunderbolt satellite - difference?

I've installed the thunderbolt add-on card in the lowest PCI slot as Screenshot Thank you 0 Kudos Reply

Echo Express III-D Thunderbolt 3 Edition - 3-Slot PCIe Card Expansion SystemConnect Three Full-Lengt ₹118, Add to Cart

thunderbolt slot png HDMI female x 1 USB female x 2 USB Gen2 female x 3 Gigabit Ethernet port x 1 Audio Jack x 1 SDmSD card slot supporting

nachtkast met slot 135W adapter, 1x power cord, standard Thunderbolt cable Input Power 20 V A Physical Security Feature 1* NanoSaver lock slot 1*MicroSaver lock slot