Does PCIe x16 slot, running at x4 mean this x16 slots

Storage options are plentiful as well, with dual 2280 slots One slot utilizes a PCIe x4 interface for blazing-fast storage speeds,

I've heard that when you plug an x16 it runs at four times less than its normal bus, but I actually want to add a PCIE x4 card into the slot I

x4d slot PCIe Gen4 x4 Slot to SFF-8644 Passive Adapter Part #:, PCI-AD-x444-04-G4 Description: Gen4 PCIe x4 slot – SFF-8644 Passive Adapter Minimum Quantity: 1 List

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