I have linked below the cards I bought. The prices change all the time, including from purchase to recording to posting. There are also X8 cards, dual cards for nvme and sata, and a few others. Search "X4 PCIe to NVME M.2 Adapter Card" and go by low to high. There are many sponsored options but should always find something for 7.99. <br />The purple card can be found here: <br />https://www.amazon.com/1-Port-NVMe-Adapter-M-Key-Gen3/dp/B09NHST6F2/ref=sr_1_17_sspa?crid=3B00P7TXLC8LI&keywords=m.2+to+pcie+nvme+x4+adapter+card&qid=1679100744&s=electronics&sprefix=m.2+to+pcie+nvme+x4+adapter+card%2Celectronics%2C106&sr=1-17-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFPNzY3RE1JRDNGRSZlbmNyeXB0ZWRJZD1BMDA5MDA2ODM4Wk8xUTZDT00xSDImZW5jcnlwdGVkQWRJZD1BMDUwMjQ4MzNRVjVQVFo2VEJXUUMmd2lkZ2V0TmFtZT1zcF9tdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl<br />The black card can be found here:<br />https://www.amazon.com/Profile-PCI-M-Key-Express-Adapter/dp/B07R9VB35J/ref=sr_1_4?crid=1HSZKOAOA5808&keywords=xiwai+x1+pcie+to+nvme+m.2&qid=1679100632&s=electronics&sprefix=xiwai+x1+pcie+to+nvme+m.2%2Celectronics%2C410&sr=1-4
