Memory Card 256gb 128gb 64gb 100mb/s Sdxc C10 U1u3 Uhs-i Microsd Tf Flash Card. SPECIFICATIONS: Package: Yes Read/Write Speed: Class 10 Model Number: MB-MC Series Type: TF / Micro SD Card Usage Application: Go Pro, Smartphone,Navigation, Tablet, Etc Certifications: FCC, CE, VCCI, NATA Read Speed 128G/256G/512G: Up to R100mb/s Size: 15*11*1mm Operation Voltage: 2.7V-3.6V Package: Yes Capacity: •32 GB = Approximately 28 GB – 30 GB •64 GB = Approximately 58 GB – 60 GB •128 GB = Approximately 115 GB – 119 GB •256GB=approximately 230GB~238GB •512GB=approximately 460GB~476GB Reminders: 1) This is the Calculation Difference Between the Manufacturer and Your PC, Please Search 'memory Card Capacity' to Get More Information. 2) Your PC Says 1 GB = 1.073741824 Billion Bytes. The Market Defines 1 GB = 1.00 Billion Bytes. Speed: • EVO 16 GB U1 Class 10 Speed: Max Read Speed to 80 MB/s = SDHC • EVO+ 32 GB U1 Class 10 Speed: Max Read Speed to 95 MB/s = SDHC • EVO+ 64 GB U1 Class 10 Speed: Max Read Speed to 100 MB/s = SDXC • EVO+ 128 GB U3 Class 10 Speed: Max Read Speed to 100 MB/s = SDXC •EVO Plus 256GB U3 Class10 Speed, Max Read Speed to 100MB/s = SDXC •EVO Plus 512GB U3 Class10 Speed == Max Read Speed Up to 100MB/s = SDXC Package Included: 1 X Micro SD Card . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.