About SSD performance test 

1. Our speed test is base on SATA 3.0 interface
Difference between SATA I, SATA II and SATA III
SATA I (revision 1.x) interface, formally known as SATA 1.5Gb/s , is the first generation SATA interface running at 1.5 Gb/s. Max speed 150MB/s.
SATA II (revision 2.x) interface, formally known as SATA 3Gb/s, is a second generation SATA interface running at 3.0 Gb/s. Max speed 300MB/s.
SATA III (revision 3.x) interface, formally known as SATA 6Gb/s, is a third generation SATA interface running at 6.0Gb/s. Max speed 600MB/s. This interface is backwards compatible with SATA 3 Gb/s interface.
If sata3.0 SSD tested speed on sata2.0 interface and sata cable, then the result will be inaccurate.

2. Due to different platform or software, the result will be a little difference(we usually use CrystaDisk and AS SSD Benchmark test Our SSD)

Why the capacity display from computer is smaller than original capacity? 

1. In factory,  we use 1000KB=1MB for calculate, also we use a little space as the Bad Bolck Management software for SSD's stable using, the real capacity will be: Capacity x 0.93, Pls notice that all of the SSD must have the Bad Block Management sofeware for its running well.
Actual capacity calculation: Total storage x 0.93 
Factory default setting :1GB=1000MB=1000000KB=1000000000B Computer 
system setting:1GB=1024MB=1048576KB=1073741824B 

For Example: 360GB SSD
Factory capacity: 360x1000x1000x1000=360000000000B 
In computer show actual capacity: 360000000000B/1024/1024/1024=335G Fast calculation: 360Gx0.93=335G
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