water-cooled copper plate is one piece; it covers GPU, memory, and forms a manifold for the heat pipe. Common parts with the MCW60 are housing, hold-down plate and back plate. With the copper plate representing the majority of the product cost, there is little point setting up an upgrade path.
The key advantage of this solution is specifically to take advantage of the low housing cost (inj. molded).
oh, and one more thing: no aluminum in contact with coolant. sorry I forgot to mention this detail.
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