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Throw in the prospect of the latest Nvidia RTX 30-series and AMD Radeon RX 60-series GPUs (which are all behemoths), and you're going to have to complete some serious research before taking the plunge. The ASUS ROG XG Station 2 is unclear about which non-ASUS products it will work with. The Razer Core external GPU dock only works with Thunderbolt 3. As previously mentioned, the Alienware Graphics Amplifier has a proprietary connector and will only work with Alienware laptops. In addition, each of the listed external GPUs comes with specific compatibility requirements that you may or may not need to consider.
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(Not forgetting the existing cost of your laptop, of course.) And that's on top of the already expensive GPU to go in the dock. You're looking at a couple hundred bucks or more. Though an external GPU dock is basically just a small piece of motherboard with a PCIe port and a connector cord, you can end up shelling out a surprising amount.
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