It seems the card is legit but the test says the media is likely to be defective due to 2.4 MByte DATA LOST (5102 sectors). Does this mean the card is dying?
Warning: Only 488334 of 488335 MByte tested.
The media is likely to be defective.
476.8 GByte OK (1000102930 sectors)
2.4 MByte DATA LOST (5102 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
2.4 MByte corrupted (5102 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x0000001559036200
Expected: 0x0000001559036200
Found: 0x6200620062006200
H2testw version 1.3
Writing speed: 15.9 MByte/s
Reading speed: 17.6 MByte/s
H2testw v1.4
Warning: Only 488334 of 488335 MByte tested.
The media is likely to be defective.
476.8 GByte OK (1000102930 sectors)
2.4 MByte DATA LOST (5102 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
2.4 MByte corrupted (5102 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x0000001559036200
Expected: 0x0000001559036200
Found: 0x6200620062006200
H2testw version 1.3
Writing speed: 15.9 MByte/s
Reading speed: 17.6 MByte/s
H2testw v1.4