SDCARD ALIEXPRESS 200GB 128GB FOR SAMSUNG J7 PRIME AND OUKITEL K6000

ALIEXPRESS STORE

I bought 2 micro SDXC cards UHS-I of 200GB and 128GB

The SDCARD 200GB is more cheaper than the 256GB.

1 byte [en] = 8 bits [en – fr] = 1 octet [fr]

microSDXC UHS-I = U1
speed [vitesse] 100 MB

USB 2.0 : 480 Mbit/s
USB 3.0 : 5 Gbit/s
USB 3.1 (Gen 2) : 10 Gbit/s

1 byte = 9.3132 x 10-10 GB

200 GB SDXC format exFAT : 196 831 870 976 bytes + 524 288 bytes = 196 832 395 264 bytes = 183.31 GB (www.convertworld.com)
We have also 196 832 395 264 bytes = 187 714 MB (www.convertworld.com)
Writing speed: 19.1 MByte/s = 153 MB/s = 160 222 413 bits/s (www.convertworld.com)
Reading speed: 22.8 MByte/s = 182 MB/s = 191 260 262 bits/s (www.convertworld.com)

Reading speed (separate in a second time): 28.1 MByte/s = 225 MB/s = 235 719 884 bits/s (www.convertworld.com)

This card is not really of 200GB, but 183.3GB, but the number of bytes is 196.8 x 10^9 bytes
A commercial cheat game is made around on the calculations methods. That give some confusions.
All commercial wrong methods are cheating, i think, so i can compare the 196.8 with 200.
It is missed 3 GB on this SDCARD (1.5%).
It is few and acceptable.
The speed quality is high and perfect.

128 GB SDXC format exFAT : 127 831 244 800 bytes + 655 360 bytes = 127 831 900 160 bytes = 119.05 GB (www.convertworld.com)
We have also 127 831 900 160 bytes = 121 910 MB (www.convertworld.com)
Writing speed: 15.6 MByte/s = 125 MB/s = 130 862 284 bits/s (www.convertworld.com)
Reading speed: 16.6 MByte/s = 132 MB/s = 139 250 893 bits/s (www.convertworld.com)

Reading speed (separate): 19.5 MByte/s = 156 MB/s = 163 577 856 bits/s (www.convertworld.com)

This card is not really of 128GB, but 119.05GB, and the real number of bytes is 127.8 x 10^9 bytes
A commercial cheat game is made around on the calculations methods. That give some confusions.
All commercial wrong are cheating i think, so i can compare the 127.8 with 128.
It is missed only 0.2 GB on this SDCARD (0.15%).
The speed quality is good and more than 100Mbits/s on a USB 2.0.
This SDCARD is perfect if we accept the cheating method (because only 119 GB).

[palavra-chave]
SDCARD ALIEXPRESS 200GB 128GB FOR SAMSUNG J7 PRIME AND OUKITEL K6000

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