Product comparison · 2 memory cards

Samsung MB-MJ256KA 256 GB MicroSDXC UHS-I Class 10 vs Samsung MB-SD128KB/WW memory card

11specifications compared
6differ
5identical
14known for one product only

Key differences

Capacity
- MB-MJ256KA 256 GB MicroSDXC UHS-I Class 10:256 GB
- MB-SD128KB/WW memory card:128 GB
Flash card type
- MB-MJ256KA 256 GB MicroSDXC UHS-I Class 10:MicroSDXC
- MB-SD128KB/WW memory card:SDXC
Read speed
- MB-MJ256KA 256 GB MicroSDXC UHS-I Class 10:100 MB/s
- MB-SD128KB/WW memory card:160 MB/s
Write speed
- MB-MJ256KA 256 GB MicroSDXC UHS-I Class 10:40 MB/s
- MB-SD128KB/WW memory card:120 MB/s
Product colour
- MB-MJ256KA 256 GB MicroSDXC UHS-I Class 10:White
- MB-SD128KB/WW memory card:Blue, White

Side by side

Differences highlightedShow differences only

Comparison of MB-MJ256KA, MB-SD128KB/WW
25 specifications	A Samsung MB-MJ256KA 256 GB MicroSDXC UHS-I Class 10 Model MB-MJ256KA View product	B Samsung MB-SD128KB/WW memory card Model MB-SD128KB/WW View product
Memory4 differ
CapacityDiffers	256 GB	128 GB
Flash card typeDiffers	MicroSDXC	SDXC
Read speedDiffers	100 MB/s	160 MB/s
Write speedDiffers	40 MB/s	120 MB/s
Internal memory type	UHS-I	UHS-I
UHS Speed Class	Class 3 (U3)	Class 3 (U3)
Video Speed Class	V30	V30
Flash memory classKnown for one	Class 10	Unknown — not stated by the source
Supported file systemsKnown for one	exFAT	Unknown — not stated by the source
Features2 differ
Product colourDiffers	White	Blue, White
Protection featuresDiffers	Drop proof, Magnet proof, Temperature proof, Waterproof, X-ray proof	Drop proof, Magnet proof, Shock resistant, Temperature proof, Waterproof, X-ray proof
EnduranceKnown for one	Unknown — not stated by the source	10000 cycles per logical sector
CertificationKnown for one	Unknown — not stated by the source	CE(UKCA)/FCC/VCCI/RCM
Write protection switchKnown for one	Yes	Unknown — not stated by the source
Poweridentical
Memory voltageKnown for one	Unknown — not stated by the source	2.7,3.6 V
Operational conditionsidentical
Operating temperature (T-T)	-25 - 85 °C	-25 - 85 °C
Storage temperature (T-T)	-40 - 85 °C	-40 - 85 °C
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	32 mm
DepthKnown for one	Unknown — not stated by the source	24 mm
HeightKnown for one	Unknown — not stated by the source	2.1 mm
WeightKnown for one	Unknown — not stated by the source	1.75 g
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Package typeKnown for one	Unknown — not stated by the source	Blister
Other featuresidentical
Warranty periodKnown for one	Unknown — not stated by the source	10 year(s)
Packaging contentidentical
Memory adapter includedKnown for one	SD	Unknown — not stated by the source

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.

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