Synergy Digital 64GB Secure Digital SDXC UHS-I Memory Card, Compatible with Nikon D3300 Digital Camera - Class 10, U1, 100MB/s, 300 SeriesSpecifications:64GB Storage CapacityMax Read Speed: 100 MB/sMin Write Speed: 10 MB/sBuilt-In Write-Protect SwitchUHS-I / V10 / U1 / Class 10Max Write Speed: 20 MB/sRecords Full HD Video and Still PhotosCan Withstand Extreme TemperaturesAll our Memory Cards have a five year warranty.