FMLSD-SILVERSERI-256GB Specifications Form Factor CFexpressTM Type B Interface PCIe Gen3x2 Performance 1TB—Up to 1750MB/S read, up to 1300MB/s write,minimum sustained write speed 850MB/s1 512GB—Up to 1750MB/S read, up to 1300MB/s write,minimum sustained write speed 850MB/s1 256GB—Up to 1750MB/s read, up to 1300MB/s write,minimum sustained write speed 480MB/s1 128GB—Up to 1750MB/s read, up to 1300MB/s write,minimum sustained write speed 480MB/s1 Operating Temperature -10°C to 70°C (14°F to 158°F) Storage Temperature -40℃ ~ 85℃（-40℉ ~ 185℉） Dimension(L x W x H) 29.60 x 38.50 x 3.80 mm / 1.16' x 1.51' x 0.14' Weight 7.65 g / 0.016 lbs Warranty 10-year limited warranty