Wht is the difference between Samsung SSD MZ-75E120B/AM and MZ-75E120BW?

[Jayspy]

Wht is the difference between Samsung SSD MZ-75E120B/AM and MZ-75E120BW? Both are available on Amazon.in
Which one should I buy?

 

[popatim]

I'm not sure myself but my theory is that its the drives intended market.
AM=America
KR=Korea
EU=Europe
Cn=China
Bw=everyone else?