Product comparison · 2 memory cards

Kingston Technology Class 10 UHS-I SDXC 128GB vs Kingston Technology SDXC UHS-I U3 (SDA3) 256GB

Key differences

Capacity
- Class 10 UHS-I SDXC 128GB:128 GB
- SDXC UHS-I U3 (SDA3) 256GB:256 GB
Flash memory class
- Class 10 UHS-I SDXC 128GB:Class 10
- SDXC UHS-I U3 (SDA3) 256GB:Class 3
Read speed
- Class 10 UHS-I SDXC 128GB:45 MB/s
- SDXC UHS-I U3 (SDA3) 256GB:90 MB/s
Write speed
- Class 10 UHS-I SDXC 128GB:10 MB/s
- SDXC UHS-I U3 (SDA3) 256GB:80 MB/s
Product colour
- Class 10 UHS-I SDXC 128GB:Black, Grey
- SDXC UHS-I U3 (SDA3) 256GB:Black
Depth
- Class 10 UHS-I SDXC 128GB:2.1 mm
- SDXC UHS-I U3 (SDA3) 256GB:32 mm
Height
- Class 10 UHS-I SDXC 128GB:32 mm
- SDXC UHS-I U3 (SDA3) 256GB:2.1 mm
Internal memory
- Class 10 UHS-I SDXC 128GB:131072 MB
- SDXC UHS-I U3 (SDA3) 256GB:262144 MB

Differences highlightedShow differences only

Comparison of Class 10 UHS-I SDXC 128GB, SDXC UHS-I U3 (SDA3) 256GB
24 specifications	A Kingston Technology Class 10 UHS-I SDXC 128GB View product	B Kingston Technology SDXC UHS-I U3 (SDA3) 256GB View product
Memory4 differ
CapacityDiffers	128 GB	256 GB
Flash memory classDiffers	Class 10	Class 3
Read speedDiffers	45 MB/s	90 MB/s
Write speedDiffers	10 MB/s	80 MB/s
Supported file systemsKnown for one	exFAT	Unknown — not stated by the source
Features1 differ
Product colourDiffers	Black, Grey	Black
Protection featuresKnown for one	Shock resistant, Temperature proof, Vibration proof, Water resistant	Unknown — not stated by the source
CertificationKnown for one	FCC, CE	Unknown — not stated by the source
Weight & dimensions2 differ
DepthDiffers	2.1 mm	32 mm
HeightDiffers	32 mm	2.1 mm
Other features2 differ
Internal memoryDiffers	131072 MB	262144 MB
Memory layoutDiffers	1 x 131072 MB	1 x 262144 MB

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.