Is it possible to connect a WD My Book Desktop Hard Drive to the My Cloud EX2?

I have a My Cloud EX2, and despite much initial struggling with it, I’ve finally got it running smoothly, but I’m wondering, is it possible to then use the USB in the back to connect a WD My Book to it and effectively increase the storage capacity for the EX2?

Yes. I have a seagate currently, plug the power cord in and plug the USB. good to go

Yeah, but will it work with a My Book Desktop drive? Only ask because WD tends to have a weird way with their tech these days. Like with the MyCloud Home being completely locked into using WD Discovery.

They are both WD. juts plug it into the USB drive and see if it connects