memory card information / spotting a fake

ShiWarrior · 8 May 2017 at 19:43

Hi all

I thought there was a program that was like CPUZ that will tell me if the memory card is a "samsung" or a "sandisk" etc etc ?

i just used H2testw on my microSD card from "Thinkware" for my thinkware dashcam

it says it is a class 10 upto 90Mb/s

h2testw says 30Mb/s write, 37Mb/s read or there about, so i believe it may be a fake as it will give me a warning box saying there is 1 Mb missing (both in NTFS and Fat32)

i plugged into a sd to USB3 device and plugged into my USB3 port

ShiWarrior · 9 May 2017 at 17:09

i always buy Sandisk, but because i have a thinkware dashcam, the Sandisk does not work in it unfortunately

Also tried a Lexar (which im currently testing now and seems slow too)

i must be doing something wrong if my cards are no where near the rated speeds

ShiWarrior · 9 May 2017 at 18:29

i do too, so far all my cards are good, just this one im not sure of

ill test my sandisk for comparisons (speeds)

ShiWarrior · 9 May 2017 at 18:30

Warning: Only 61470 of 61471 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 19.8 MByte/s
Reading speed: 22.1 MByte/s
H2testw v1.4

Transcend microSD
64Gb
class 10 [1]

EDIT//
Above card did not work at all in my sd to USB3 adaptor, so i used my memory card slot on my pc

ShiWarrior · 9 May 2017 at 22:11

odd

Got a Sandisk Ultra here
and -

Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 12.4 MByte/s
Reading speed: 38.5 MByte/s
H2testw v1.4

Nowhere near 80 Mb/s

ShiWarrior · 9 May 2017 at 22:30

Kingston mobilelite G3
http://wccftech.com/kingston-launches-g3-mobilelite-usb-30-card-reader/

ShiWarrior · 9 May 2017 at 22:59

i always do too
but something isn't right
ill try again tomorrow if still slow, then i might buy a new memory card reader

ShiWarrior · 10 May 2017 at 11:53

This is interesting so i connected the Sandisk Ultra SD card straight into my memory card slot on the front on my PC (icy box)
and i get this :

Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 12.5 MByte/s
Reading speed: 83.2 MByte/s
H2testw v1.4

83Mb/s is more than the 80Mb/s rated speed
i thought it was USB2 connecting it this way, maybe it isnt ?
maybe the kingston G3 is faulty ?

ShiWarrior · 12 May 2017 at 16:03

asim18 said:
Anyway Class 10 is just too slow, it's 10MB/s which is nothing.
You need something labelled as a "V30" card which should give you 30MB/s.

i assume that's write speeds
my class 4 reaches 22 Mb/s Read
and my class 10 reached 80 Mb/s Read

or is 10 Mb/s the minimum ?