4GB MicroSDHC Memory Card for Microsoft Lumia 640 XL LTE Dual SIM Smartphone with Free USB MicroSD/SDHC Card Reader -- 4 G/GB/GIG 4G 4GIG Compatible With: Microsoft Lumia 640 XL LTE Dual SIM Capacity & Type: 4GB MicroSDHC Specifications: Complies with SD Association's Specifications Certifications: CE/FCC/RoHS Warranty: 5 Year Manufacturer's