PCIe and PCI Expansion Slots (Sun Ultra 27 Workstation Service

My SSD connected to my board but speedtest gives me 3Gbs If I buy pcie expansion card can it be faster than onboard slot? Onboard m2 slot or

PCIe slot is a high-speed expansion slot that allows for faster data transfer between the motherboard and expansion cards It is a serial bus,

pcie m2 slot 5 GBs of data in each direction, and up to 32 channels can be bound in one slot For more information: articlespaediahardware

pcie x1 slot function My SSD connected to my board but speedtest gives me 3Gbs If I buy pcie expansion card can it be faster than onboard slot? Onboard m2 slot or