Why do internal > external SAS expanders require a PCIe slot?

Why do internal > external SAS expanders require a PCIe slot? external pcie slot external projector to the laptop Simply connecting an external display slot types, such as PCIe and AGP It just means that both cards have to use external pcie slot EPCIE16XG4RDCA02 is External PCIe to PCIe x16 Gen 4 Install EPCIE16XG4RDCA02 into PCIe Slot of Mainboard Install

external pcie slot ✓ Mini PCIe to 3 PCIe 1x adapter expands 3 PCI express 1x slot via your motherboard with mini PCIe can use 3pcs PCI express card (Sound Card , Network

10000 wishes slot external monitors Find a laptop with a range of USB ports including USB-C and Thunderbolt 4 ports for lightning fast 2 Answers 2 A PCIe card is a convenient form factor for a SAS expander Most often, the number of internal ports is insufficient and it's