Key Features: - 256GB: Up to 250MB/s read, up to 120MB/s write - 128GB: Up to 250MB/s read, up to 120MB/s write - 64GB: Up to 250MB/s read, up to 120MB/s write - Operating Temperature: 0 °C to 70 °C (32 °F to 158 °F) - Storage Temperature: -25 °C to 85 °C (-13 °F to 185 °F) - Dimension (L x W x H): 32 mm x 24 mm x 2.1 mm / 1.25” x 0.95” x 0.08” - Warranty: Limited lifetime warranty