Serial and Mac Calculating

[gokselu]

I know there is a relationship between the serial number and MAC. Is there any way to find my MAC addresses with the serial number I have?

[OrpheeGT]

There is absolutly no relationship between SN and MAC with generated/fake SN.

Only real SN/MAC pair from genuine Synology have a "relationship".

On loaders, the MAC is generated randomly, it just set same first 6 digits from synology 00:11:32 or 90:09:D0 last 6 digits are totally random.

Regarding the generated SN, only the trigram from each model is set, letter/digits behind trigram are also randomly generated.

If you "found on your real genuine Synology" a real SN but don't have MAC, there is no way to guess/retrieve it.