Memory Storage Card 128GB 95MB/S 4K Class10 Micro SD Cards – Red 1.Compatibility Any computer parts have compatibility issues, but Samsung as a world brand,with a good compatibility . if your device is too old, may not be suitable for the latest products 2.Capacity Difference of Factory design and Electronic products to lead a capacity difference , available capacity will be about 90% -93% 3.Speed Please test by H2testw and use good quality USB3.0 reader , speed is influenced by many different factors , interface, computer condition , test software ,systems ,use , etc . 4.Interface USB3.0 is compatible with USB2.0, USB2.0 speed will show the lower. 5.Color Display and light of shoot will affect the color of the products, pictures for reference only, subject to our available products 6.Chips Samsung is a very big and famous storage product factory , but the chips of its products are selected to good quality chips companies around the world . 7.Surface Scratch All of Samsung products need to be tested before sent out , surface scratch is normal 8.Weight Based on the express company and our weight result before sent 9.Appearance of Products pictures for reference only, subject to our available products , factory have the right to change the appearance at any time . 10.Package Broken Long international shipping will damage and crush the package , if you found there is unpacking signs,please do not sign for . Outer Package in good condition, but the product retail package by extrusion deformation, 11.Package We guarantee the products 12.Test a little capacity can not be read and tested , it is normal , not a product quality problem. Tips: How to verify the Capacity and Speed of the memory card? 1). Please use quaity USB 3.0 card reader to verify all memory card by H2testw on PC. Real memory card should pass H2testw with no error.2). Please don\\\’t use cheap card reader to test Micro SD card, speed of Micro SD card will be reduced by low quality card reader.3). Micro SD memory card speed is greatly affected by card reader and the capacity you choose , USB port ect. Low quality device will 100% slow down card speed, 1MB=1000KB. Can record and play 4K UHD video, with up to 100MB/S reading speed, meeting your speed requirements. Waterproof, X-ray proof, magnetic proof, can also work in harsh environment. Balance performance to improve your mobile experience. Allows you to transfer video to your laptop in a very short time and share it quickly. Key Features: Voltage: 2.7~3.6V Storage temperature: -40℃~85℃ Working temperature: -25℃~85℃ Capacity: 128GB Reading speed: 128GB: 95MB Writing speed: 128GB: 20MB/s Speed rating: Class 10 UHS: 128GB Compatible device: Smartphone, tablet, sports camera, automobile data recorder,etc. Package weight: 10g / 0.35ounce Package size: 160 * 90 * 5mm / 6.29 * 3.54 * 0.19inch