Hi,
Settled with your answer, and since I got other (more effecient NAS) I putted it up for sale, since became a bit useless (I mostly used it for media server) and since no upgrades from a longtime...
Today I researched more about and went check the Release Notes about this version:
ftp://ftp2.dlink.com/PRODUCTS/DNS-320L/REVA/DNS-320L_REVA_RELEASE_NOTES_v1.11B01.pdf
DNS-320L/LW Firmware Release Notes
Firmware: 1.11B01
Hardware: DNS-320L A1/A2/A3
DNS-320LW A1/A2
Date: 2018/6/29
And this is my dns case... 320LW A2.
I might give it a try.
Thank you