Kingston Introduces Entry-level PCIe NVMe SSD | Business Wire
Amazon.com: OWC 240GB Aura Pro X2 NVMe Flash SSD Add-On Solution Compatible with Mac Mini (Late 2014), Including Tools & Installation Components : Electronics
What is the difference between PCIe Gen 3 X2 and X4 SSDs? Can these two SSDs be used for laptops that support the PCIe interface? - Quora
HP L57349-001 - 128GB M.2 2280 PCIe NVMe Solid State Drive - Drive Solutions
Amazon.com: PUSOKEI M.2 NGFF NVME SSD Adapter, 2280 2260 2242 2230 PCIE x4/PCIE x2 M.2 NGFF M‑Key SSD Adapter Card Module Replacement for Mac Mini A1347 Model 2014 : Electronics
PCIE 4.0 x16 to x8+x4+x4 Expansion Riser Card M.2 NVME x2 Input Designed | eBay
Amazon.com: OWC 240GB Aura Pro X2 NVMe Flash SSD Add-On Solution Compatible with Mac Mini (Late 2014), Including Tools & Installation Components : Electronics