Good cost-per-gigabyte ratio for a PCI Express M.2 drive. Polished software management suite.

Ho-hum sequential-write benchmark speeds at tested size. Low endurance rating, though competitive warranty length. No heat spreader.

Bottom Line: Crucial's P1 is a cost-oriented QLC-memory-based M.2 SSD, the company's first PCI Express NVMe effort. The result is a pinch on performance—faster than SATA, slower than most PCIe drives—but one that may be a fair trade-off for...