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HYPER M.2 X16 GEN 4 CARD|Motherboards|ASUS Global
StarTech.com Dual M.2 PCIe SSD Adapter Card, x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 4.0, Up to 7.8GBps/Drive, For 2242/2260/2280/22110mm PCIe M-Key M2 SSDs, Bifurcation Required
Highpoint Updates NVMe RAID Cards For PCIe 4.0, Up To 8 M.2 SSDs
PCIe 4.0 Card Hosts 21 M.2 SSDs: Up To 168TB, 31 GB/s | Tom's Hardware
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ASRock Ultra Quad M.2 Card Review - 4 x M.2 SSD RAID at 10GB/s and 932K IOPS | The SSD Review