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I have a white one of these with brown switches and paid about $100, and it's called the RK61 Pro. I have no idea what model this is, but I ordered a black one with blue switches for typing angry emails, or responding to idiots on this site. Less than half price is a bit sus, but the pics look alright. Worst case scenario is that I receive a fake, hopefully a decent fake, with the loudest blue switches.
Do the arrow keys work on their own, or do they need Fn as well?
I purchased the Blitzwolf BW-KB0 with brown switches and really like the size- the only thing I dont like is having to use the Fn for the arrows.
Edit: It seems like this will be very similar, it seems to need Fn+arrow or some kind of macro to work.