Question about firmware for 3500AG

I have a NEC ND-3500AG (FW 2.17) OEM Drive. This may seem like a stupid question but are there different firmware’s for retail and OEM versions of ND-3500AG? If so, then which is the latest official firmware for my drive and does it offer any significant advantage over my current firmware?

NEC claims that the version 2.17 firmware was not released by them. According to their documentation, the official versions available are 2.16, 2.18 and 2.19.

If you want to get the official version, try going to and entering the product support section.

The differences between each version can be found here: