Samsung's EVO Plus microSD Card has added memory capacity and multi-device functionality so you can focus on life, not technology. This UHS-I Speed Class 1 (U1) and Class 10 compatibility card is perfect for capturing photos and for video recording &ayback in Full HD. And with read &ite speeds of up to 80MB/s &MB/s respectively, apps and videos load quicker and files transfer faster. Features: For great quality photos and Full HD video recording Up to 80MB/s read and 20MB/s write speeds UHSI Speed Class 1 (U1), Class 10 Specifications: GENARAL FEATURE Product Type: microSDHC Memory Card Family Line: EVO Plus Application: Mobile phone, Smartphone, Tablet, etc Capacity: 64GB, (1GB=1Billionbyte) * Actual usable capacity may be less (due to formatting, operating system, applications or otherwise) Interface: UHS-I, compatible to HS interface Dimension (WxHxD): 15x11x1(mm) Weight: Approx. 0.5g PERFORMANCE Speed Read : up to 80MB/s with UHS-1 interface Write : up to 20MB/s with UHS-1 interface * Actual speed may vary depending on use host device conditions and environment. Speed Class Grade 1, Class 10 ENVIRONMENT Operating Voltage 2.7~3.6V Storage Temperature -40 to 85 Operating Temperature -25 to 85 Durability 10,000 mating cycles CERTIFICATION EMC FCC, CE, VCCI, NATA Limited 10 years * is limited for any type of surveillance system. ** for SD adapter is limited to 1 year