There's two version of WD My Book, blue and green? Premium Storage vs. Desktop Storage

am in linux now & do get a different model number (extension?):

/dev/sdd:

ATA device, with non-removable media
        Model Number:       WDC WD40EZRX-00SPEB0                   
        Serial Number:      WD-WCC
        Firmware Revision:  80.00A80
        Transport:          Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0

What does your latest SATA Rev show?  Also, I do see that the “firmware” is still the same.

Then, the “model number” on the box is different to the internal model number which most likely is the drive itself & not the include the enclosure and/or software; I did see that WD has drives without software that is about $10 cheaper like what Seagate does.