I salvaged an ASUS-branded DS-8A3S into an external drive case. It has ASUS firmware HA28 (which I believe is the only update from Asus, and was required to make the drive compatible with Windows 7 power management). This dates from late 2009.
In looking around for more recent firmware, I came upon a Dell update HD52 which, on the Dell web site is listed as having a late 2012 release date. (FirmwareHQ has the same file, listed as from 2009).
The Dell flasher refuses to recognize the Asus drive, of course … and the flasher seems to be encrypted and not supported by the XFlash utility - so I don’t have a .BIN file.
I think I know the answer is “no” - but is there any way to do the crossflash?