HARD LEXAR NQ780Capacities 8TB 4TB 2TB 1TB Form Factor M. 2 2280 Interface PCIe 4. 0 Performance Sequential Read Write: 1TB 4TB: up to 7400MB s read, 6500MB s write speeds 8TB: up to 7000MB s read, 6200MB s write speeds Random Read Write: 1TB 2TB: up to 1000K IOPs read, 900K IOPs write speeds 4TB: up to 900K IOPs read, 900K IOPs write speeds 8TB: up to 850K IOPs read, 900K IOPs write speeds Operating Temperature 0C to 70C (32F to 158F) Storage Temperature 40C to 85C