Hello everybody,
Planning to buy additional ram memory. I have 8gb Samsung m471b5173bh0-yk0 (2x4gb). And planning to buy same 2x4gb. I found on e bay but one number make me confused and its quiet important to get answer as fast as possible, reason is shipping date is around 10 July, and 11 July i am leaving country for a 2 mouths, so i must get the memory lastest 10 July, so it mean i must order today-tonight.
First photo is mine memory, i marked number. What that number mean and is it important ?

Second photo is memory which i want to order but i am not sure, cause only that 4 digit number is different then mine.

Thanks a lot for help.
Alex