A.H/W change from A1 to B1:
1.Change power adapter : 7.89A to 4.74A
2.Change OLED Component.
B. Backup Software changes from FarStone's DriveClone Pro 5 to DriveClone Pro 7
C. Packing material change:
a. Change GB
US : v1.10(B) to v1.20(B):Size change to 27cm*24cm*25cm
b. Change QIG
US: v1.4(B) to v1.5(B)
c. Change CD
US : v1.2(B) to 1.3(B)
Main change is bold above. The A1 uses a much larger power brick than the B1 essentially.