Hardware What does my h2testw test results say?

[DillPickle]

I dont understand anything bc im dumb is there anyone who can explain the test results please..
The card i tested is supposed to be 512gb

"Warning: only 488090 of 488092 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writting speed: 16.4 MByte/s
Reading speed: 28.5 MByte/s
H2Testw v1.4"

 

[BigOnYa]

Looks like this card has been very promiscuous, better get it tested at a clinic. LOL JK
Looks fine!
You never get full GB that a card is listed at, it's normal.

 

[DillPickle]

T

Looks like this card has been very promiscuous, better get it tested at a clinic. LOL JK
Looks fine!
You never get full GB that a card is listed at, it's normal.

Thanks you!!