simple test for disk speed

Test Tool: CrystalDiskmark

1. WD .m2 NVMe SSD SN550, official claim up to 2400 MB/s read
   
2. USB 3.0 + Intel 2.5" SATA SSD S3500, offical claim 6Gb/ (750MB/s) read

3. NSA(1 Gbps/125MB/s network interface) + WD 3.5" SATA SSHD, official claim 6Gb/s (750MB/s) read
   

4. WD USB 3.0 disk(HDD)

5. kingston flash USB