can you add pcie slots: What is an Expansion Card? (with pictures) - EasyTechJunkie. Turn Link State Power Management on or off in Windows 11 [Tutorial ... . What is an Expansion Slot and How Does It Work?.
Simply add another hard drive controller expansion card to one of the mother board's expansion
slots and you can then add hard drives either externally or internally.
PCIe
slot (Image credit: MMXeon/Shutterstock) ... Every desktop PC has a number of
PCIe slots you can use to add (aka video cards aka graphics cards), RAID cards, Wi-Fi cards or (solid-state drive) add-on cards.
The term “PCIe card” and “expansion card” simply refers to hardware, like graphics cards, CPUs, solid-state drives (SSDs), or HDDs, you may add to your device through PCIe slots, making both catch-all terms for a variety of components.