which one is recommended
HP EX920 M.2 512GB PCIe 3.0 x4 NVMe 3D TLC NAND Internal Solid State Drive
Intel 660p Series M.2 2280 512GB PCI-Express 3.0 x4 3D NAND Internal Solid State Drive (SSD) SSDPEKNW512G8XT
Crucial P1 500GB 3D NAND NVMe PCIe M.2 SSD - CT500P1SSD8
Kingston A1000 M.2 2280 480GB PCI-Express 3.0 x2 3D TLC Internal Solid State Drive (SSD) SA1000M8/480G