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SanDisk microSDHC Class 2 4GB vs. SanDisk Extreme Pro SDXC Class 10 UHS-I U3 V30 170/90MB/s 64GB + 9

Application Performance Class
No
No
No
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Speed class (App)
Class 2 (A2)
Class 2 (A2)
Class 1 (A1)
Class 1 (A1)
Class 1 (A1)
Class 1 (A1)
Speed class
Class 2
Class 10
Class 10
Class 10
Class 10
Class 10
Class 10
Class 10
Class 10
Class 10
Class 10
Ultra High Speed (UHS)
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Speed class (UHS)
UHS U3 (Class 3)
UHS U3 (Class 3)
UHS U3 (Class 3)
UHS U3 (Class 3)
UHS U1 (Class 1)
UHS U3 (Class 3)
UHS U1 (Class 1)
UHS U1 (Class 1)
UHS U1 (Class 1)
UHS U1 (Class 1)
UHS interface
UHS-I
UHS-I
UHS-I
UHS-I
UHS-I
UHS-I
UHS-I
UHS-I
UHS-I
UHS-I
Video Speed Class (VSC)
No
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
Speed class (VSC)
V30
V30
V30
V30
V10
Features
Read speed
3.5 MB/s
170 MB/s
95 MB/s
160 MB/s
170 MB/s
100 MB/s
95 MB/s
100 MB/s
100 MB/s
85 MB/s
100 MB/s
Write speed
2 MB/s
90 MB/s
90 MB/s
90 MB/s
90 MB/s
90 MB/s
90 MB/s
25 MB/s
90 MB/s
10 MB/s
90 MB/s
Format
microSDHC
SDXC
SDXC
microSDXC
microSDXC
microSDXC
microSDXC
microSDXC
microSDXC
microSDXC
microSDXC
Memory capacity
4 GB
64 GB
128 GB
128 GB
128 GB
400 GB
256 GB
256 GB
256 GB
128 GB
512 GB
Price/GB
7.5 $/GB
0.56 $/GB
0.62 $/GB
0.38 $/GB
0.42 $/GB
0.32 $/GB
0.23 $/GB
0.19 $/GB
0.37 $/GB
0.2 $/GB
0.3 $/GB