Actually, I haven't heard of any OEM versions of this drive up till now. There are two kinds of OEM LG writers :
a. retail (GSA) model sold as just the plain drive without software/cables/manuals/all 3.
b. mutant (slightly different) model number, especially non GSA models
Type a is acceptable (if you don't care about the software, cables or manuals). Type b is NOT (see below).
The general rule for OEM LG writers covers two things :
- The model number
If the model number is identical (i.e. GSA-H10N), it should be ok to purchase the drive. Do not accept GWA, GCA, GMA or any other letter combination. Only GSA models are acceptable. You will have a lot of trouble finding firmware updates and getting support for the other non GSA models because LG does not support these models itself.
Also, if the number differs slightly (e.g. GSA-H11N - not that I have ever hard of such a model), avoid the drive as well for the same reasons.
- Firmware version
Some OEM versions of the LG writers may have different firmware version formats. Currently two are known to exist for the H10N : JLxx and JJxx. Both are acceptable.