Chipset slots and Gen4 NVMe, am I really bottlenecked?

What does the X4 mean in an PCIe Gen X4 NVME drive? nvme 4 0 in 3 0 slot
➡️【Mk..com】✅आपको हमारी ऑनलाइन कैसीनो साइट मिलेगी ✅ आपके पसंदीदा कैसीनो गेम की विविधता प्रदान करती है, दांव सभी बैंकरोल के लिए उपयुक्त हैं, और हम मित्रवत हैं ✅  You can plug pcie into slots as it's backwards compatible but the speeds will be limited to Gen 3 It wouldn't be able to go above the nvme slot vs m2 Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot? Section Link A PCIe NVMe SSD will work in a PCIe motherboard slot at PCIe

nvme pcie 40 in 30 slot Can I Use a PCIe NVMe SSD in a PCIe Motherboard Slot? Section Link A PCIe NVMe SSD will work in a PCIe motherboard slot at PCIe