<ul><li>Product details of KingSpec M.2 NVMe PCIe 3.0 X4 (256 GB SSD) M.2 2242 PCIe Hard Drive Disk Internal Solid State Drive for LaptopDescription KingSpec M.2 NVMe 256 GB SSDM.2 2242 PCIe Hard Drive Disk Internal Solid State Drive 1. Interface protocol: PCIe Gen3 x4 Lane NVME 1.3 2. Input voltage: DC 3.3V (±5%) 3. Operating temperature: 0℃ ~ +70℃ 4.Dimension: 42mm length x22mm wide x2.5mm height(error±0.1mm) 5. Write endurance: Write 100GB /Day, theoretically can use 8 years; 6. Read life: unlimited 7.MTBF: 1,000,000 hoursDescription KingSpec M.2 NVMe 256 GB SSDM.2 2242 PCIe Hard Drive Disk Internal Solid State Drive 1. Interface protocol: PCIe Gen3 x4 Lane NVME 1.3 2. Input voltage: DC 3.3V (±5%) 3. Operating temperature: 0℃ ~ +70℃ 4.Dimension: 42mm length x22mm wide x2.5mm height(error±0.1mm) 5. Write endurance: Write 100GB /Day, theoretically can use 8 years; 6. Read life: unlimited 7.MTBF: 1,000,000 hours</li></ul>