Razer Core X Chroma Aluminum External GPU Enclosure (eGPU) AWS USED-LIKE-NEW $288 at Amazon

$361 before 20% off coupon automatically applied at checkout:
https://www.amazon.com/gp/offer-l…dition=all
25 available as of this posting (Avg used price $369 per price history). This is a great eGPU enclosure ((GPU not included), upgraded RGB lighting and a pair of USB ports to name a few of the upgrades over the original Core X (which costs $100 less at $299).
Note to take advantage of this eGPU, your laptop ought to have 4 TB3 lanes of throughput, and expect a 10-20% hit to GPU performance when compared to a standard in-desktop GPU.