Performance of SD v mSata in USB enclosure

X92 Installed to internal (S912 16GB Flash)

Livingroom:~ # hdparm -Tt /dev/data

/dev/data:
 Timing cached reads:   1672 MB in  2.00 seconds = 835.43 MB/sec
 Timing buffered disk reads: 370 MB in  3.01 seconds = 122.86 MB/sec
Livingroom:~ #

Mecool KM8 P Installed to internal (S912 8GB Flash)

CoreELEC:~ # hdparm -Tt /dev/data

/dev/data:
 Timing cached reads:   1678 MB in  2.00 seconds = 838.50 MB/sec
 Timing buffered disk reads: 310 MB in  3.01 seconds = 103.05 MB/sec

Mecool KM8 P Installed to Class 4 SD (S912 8GB SD)

 hdparm -Tt /dev/mmcblk1p2

/dev/mmcblk1p2:
 Timing cached reads:   1602 MB in  2.00 seconds = 800.95 MB/sec
 Timing buffered disk reads:  58 MB in  3.10 seconds =  18.71 MB/sec

Mecool KM8 P Installed to Class Trandsend V30 SD (S912 128GB SD)

 CoreELEC:~ # hdparm -Tt /dev/mmcblk1p2

/dev/mmcblk1p2:
 Timing cached reads:   1608 MB in  2.00 seconds = 803.78 MB/sec
 Timing buffered disk reads:  68 MB in  3.08 seconds =  22.04 MB/sec

A95X Installed to SD Card (S905 apacer 32GB)

bedroom:~ # hdparm -Tt /dev/mmcblk1p2

/dev/mmcblk1p2:
 Timing cached reads:   1760 MB in  2.00 seconds = 879.44 MB/sec
 Timing buffered disk reads:  60 MB in  3.01 seconds =  19.94 MB/sec