I can find a few images of it on Google Image Search.

It looks like a dome-with-slider keyboard from BTC. I suppose that BTC's model number could be BTC 5130.
The BTC 5139 is definitely dome with sliders on PCB, as is the BTC 5140, and Packard Bell has been using other OEM keyboards from BTC. I can't tell for certain but I would say that it is likely that it is dome/slider/PCB
I have got a couple of BTC 5140's. The BTC slider/domes over PCB feel quite nice, as rubber domes go. The keycaps are largely Cherry MX-compatible and practically in the same shapes as Signature Plastics' DCS profile. The stabilized keys are different though.