[DETAIL] About capacity: 4GB = approximately 3.6GB-3.9GB 8GB = approximately 7.4GB-7.8GB 16GB = approximately 14.2GB-15GB 32GB = approximately 28GB-30GB 64GB = approximately 58GB-60GB 128GB = approximately 110GB-120GB Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MB Calculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB; So there are some differences between display capacity and nominal capacity of flash memory products. Feature: 1. Micro SD Card + SD Adapter 2. Plug and play (no software needed) 3. Micro SD + TF format,Class 10 High-speed read and write 4. 4GB,8GB,16GB,32GB,64GB,128GB,256GB Storage Size 5. Applies to Cell Phones, Cameras, MP3/MP4 Player and More device 6. Comes with Adapter to Bring to SD Card 7. Can be Used as Micro SD or SD Card 8. Operating Temperature -13ordm F to 185ordm F (-25ordm C to 85 ordm C) 9. Storage Temperature -40ordm F to 185ordm F (-40ordm C to 85ordm C) [ATTRIBUTES] - Hign-concerned Chemical: None - SD Type: SDHC - Application: High Speed Read and Write,MOBILE PHONE,Tablet,NOTEBOOK,Tachograph,Camera,Monitoring,Speakers,Digital Devices,Robot,UAV,File Storage,others - Hign-concerned Chemical: None - SD Type: SDHC - Application: High Speed Read and Write,MOBILE PHONE,Tablet,NOTEBOOK,Tachograph,Camera,Monitoring,Speakers,Digital Devices,Robot,UAV,File Storage,others - Application Performance Class: A1 - Video Speed Class: V10 - UHS Level: U3 - Class Level: C10 - Package: No - Read/Write Speed: 800X - Type: SD Card - Brand Name: JASTER - Origin: Mainland China - Certification: CE