Question i see 2 different Crucial mx500 2.5 ssd's,one has a Z at the end of the model number,is there a difference or is it just something the seller adds

[sloppy1]

im looking to buy a Crucial mx500 2.5 ssd, one has this model number CT500MX500SSD1, and another has this one CT500MX500SSD1(Z). are they the same or different?

 

[UsandThem]

im looking to buy a Crucial mx500 2.5 ssd, one has this model number CT500MX500SSD1, and another has this one CT500MX500SSD1(Z). are they the same or different?

https://www.amazon.com/ask/questions/Tx1N17UJ8XJNAEU/ref=ask_ql_ql_al_hza

Amazon packaging.