What does the X4 mean in an M.2 PCIe Gen 3.0 X4 NVME drive? Solved - Windows 10 Forums
M.2 NVMe 80mm SSD PCIe x4 Adapter with Covered Heat Sink - Micro Connectors, Inc.
Amazon.com: Vantec M.2 NVMe PCIe x4 Low Profile Adapter with 110 Length Support (UGT-M2PC130), Black : Electronics
P4SM2 (PCIe X4 to M.2 Adapter)
Amazon.com: ADT-Link R44SF / R24SF M.2 NVMe SSD Extension Cable Solid State Drive Riser Card Support M2 to PCI Express 3.0 X4 PCIE Full Speed 35G/BPS(R24SF 10CM) : Electronics
QNINE NVME Adapter PCIe x16 with Heat Sink, M.2 SSD Key M to PCI Express Expansion Card, Support PCIe x4 x8 x16 Slot, Support 2230 2242 2260 2280, Compatible for Windows XP / 7/8 / 10_Products_QNINE
M.2 Key M to PCIe x4 Extender Cable Adapter, R42S - Newegg.com
RIITOP M.2 Nvme SSD to PCI-e x4 Adapter Card Converter Support M.2 NGF