Samsung T7 microSD card vs Samsung T9 microSD card

Comparison of MB-MB512T/WW, MB-MH512T/WW

22 specifications	A Samsung T7 microSD card Model MB-MB512T/WW View product	B Samsung T9 microSD card Model MB-MH512T/WW View product
Memory1 differ
Capacity	512 GB	512 GB
Flash card type	MicroSDHC	MicroSDHC
Flash memory classKnown for one	Class 10	—Unknown — not stated by the source
Read speedDiffers	170 MB/s	200 MB/s
Internal memory type	UHS-I	UHS-I
UHS Speed Class	Class 3 (U3)	Class 3 (U3)
Application performance class	A2	A2
Video Speed Class	V30	V30
Write speedKnown for one	—Unknown — not stated by the source	130 MB/s
Features1 differ
Product colourDiffers	Blue	Black
Mean time between failures (MTBF)	10000 h	10000 h
Poweridentical
Memory voltage	2.7,3.6,3.3,2.8 V	2.7,3.6,3.3,2.8 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
Width	15 mm	15 mm
Depth	1 mm	1 mm
Height	11 mm	11 mm
Weight	25 g	25 g
Packaging contentidentical
Memory adapter included	microSD	microSD
Other featuresidentical
Compatible products	Mobile phone, Tablet, Action Camera, 360° Camera, Drone, Laptop, Gaming console, etc.	Mobile phone, Tablet, Action Camera, 360° Camera, Drone, Laptop, Gaming console, etc.
Compliance certificates	Federal Communications Commission (FCC), CE, VCCI, RCM, UKCA	Federal Communications Commission (FCC), CE, VCCI, RCM, UKCA
Voltage	2.7~3.6V	2.7~3.6V

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.