Digi-Chip 8GB Micro-SD Memory Card UHS-1 Class 10. Made with Samsung high speed memory chips. For Nokia X, X+, XL and Nokia Lumia 630, 635 cell phones. High Speed 8GB Micro-SD Memory Card Class 10 Made using full capacity Samsung memory chips Ideal high speed memory card for mobile devices electrioncs memory backup. Lifetime Warranty Nokia X, X+, XL, Nokia Lumia 630, 635 s