Razer just released a new housing for external video cards. The Core X is also cheaper (300 EUR/USD) and larger, thus offers more space for graphics cards up-to three slots.... Razer Releases larger and cheaper Core X enclosure for external graphics cards
RGB LED comes with the next iteration for 50$ extra So they put extra 650W / 550W PSUs into those boxes for single GPUs? Isn't that a little overkill, especially when you try to save both space and weight with running a laptop in the first place?
I don't understand why these enclosures are so expensive. For $300+, I could just simply buy a better laptop and not have to deal with the inconvenience of another peripheral (which, BTW, will be limited by bandwidth). It's basically just a metal box, a PSU, a cable, and a small logic board. IMO, these things need to be under $100 to be worth considering. It isn't just Razer doing this - pretty much all eGPU solutions are oddly expensive.
I was thinking along the lines, since a good PSU would cost some money too, and the bigger the more it costs, that's why I asked about the purpose oif such big PSUs inside them. Didn't thin about spikes, not sure they'd be that big, but who knows
I can see why you'd think that, but that's not necessarily true. For example server PSUs are relatively cheap compared to traditional ATX PSUs, because they only operate in 12v. You can get very reliable and brand new 1KW units for under $100. Remember, GPUs are primarily 12v products. If any of the GPU requires 3.3v (I'm not sure if they do), that could easily be provided over the Thunderbolt connection with a cheap voltage step-down circuit. PCIe cards doesn't use 5v, so that's a non-issue. So, with a lower-wattage 12v custom PSU, this should be pretty cheap to approach.