I bought it new as a "LiteOn iHAS120" in April 2013. In that age I didn't know anything about the manufacturers/marketing technique of developing infinite versions or plain different models manufactured by either yourself, a 3rd party or a competitor, sell all of them with a "main" brand and model name ("LiteOn iHAS120" in this case), and name each real model with additional characters that are basically hidden to the user, in theory until you have the unit in your hands (and have already paid for it, lol).
So I installed it w/o caring about the brand/model stickers. I used it until yesterday for what I had bought it mainly: burning rewritable high speed DVD's (+RX 8x and -RW 6x). While installed it always showed up as a "Liteon iHAS120 X" in Windows (notice the two spaces between "120" and "X"). Beyond doubt it has a NEC chipset if it matters (it responds to ImgBurn's bitsetting comands for NEC, it doesn't respond to bitsetting or advanced commands for any other brand including LiteOn, and I've used firmware related tools for NEC on it with success).
I haven't found a single firmware for it (neither better, nor worse, nor newer, nor older, nor the same) nor ways to patch its current one. I finally got fed up of its failures to write my DVD+RW 8x at 8x (it frequently falls back to 3x, 3x I repeat) and yesterday I installed a replacement (a Samsung SH-224BB if you're curious, that to summarize plays well with my high speed DVD's, a bit conservative with the initial zones at lower speeds if at all, and updating the firmware to SB01 improved a whole lot the PIE/PIF counts although the 2 or 3 SB00 discs I did were readable). Now I want to sell the LiteOn drive.
Problem: I'm not sure about model or specs. Besides Windows, there's a sticker saying it's a "iHAS120 X" (I've put a few spaces between "120" and "X" like in the sticker), but there's another sticker (more clear to see) saying "Model: iHAS120-04 XU", whose specs are different:
LiteOn iHAS120-04 XU
writes DVDÂ±R9 at 8x
writes CD-RW(US) at 32x
Source: several online shops, specially from Brazil and Kazakhstan.
LiteOn iHAS120 X
writes DVDÂ±R9 at 12x
writes CD-RW(US) at 24x
Source: this pdf (the only document with iHAS120 X specs I've found).
While I had my drive installed, I believe some program (possibly ImgBurn and/or Nero) said it has 512kB buffer, and I'm sure it's limited to 24x with CD-RW(US) discs (I've got two of them rated at 32x and that can be written at such speed by all my other burners).
So it's more likely an iHAS120 X . But, what is the other sticker doing here?
How do I explain this to a buyer? Somebody please knows how to explain it to me in first place?
Is there any online LiteOn site with the specs?