usb flash drive 1gb to 128gb original quality

original capacity usb flash drive
make from 1gb to 128gb 256gb;
1gb:it can write 960mb available;
2gb:it can write 1.8g available;
4gb:it can write 3.74gb available;
8gb:it can write 7.24gb available;
16gb:it can write 14.6gb available;
32gb:it can write 28.8gb available;
64gb:it can write 57.6gb available;
128gb:it can write 115.2gb available;

365days warranty;
4colors
50pcs/color big box