Buffer number at ESI U46 MK II v3.0 driver

Hey folks,
I have searched the forum for this and found something in french but you know that I am not good in french
So is there anybody that can tell Ralf (partyVIBES) and me what's the deal with the buffer number? What is behind these numbers? Are they for the buffer length?
Additionally I searched on the esi page, but unfortunately I found nothing.
We would be very happy if anybody know something about it.
Greetings,
Steve & Ralf
I have searched the forum for this and found something in french but you know that I am not good in french

Additionally I searched on the esi page, but unfortunately I found nothing.
We would be very happy if anybody know something about it.
Greetings,
Steve & Ralf