SAMSUNG U3 Micro SD Card

Read/Write Speed: Class 10
Capacity: 8G/16G/32G/64G/128G/256(available capacity approximately 90%-93%)
Speed Level: C10 UHS-I
Read speed: See the packaging(speed is affected ny many factors)
Size: 15*11*1mm
Weight: about 0.05g
Operation voltage: 2.7V-3.6V
Storage temperature: -40-85