[mothered]

Yes the listed item weight is 450g. But surely this can’t be the case as a cpu isn’t usually that heavy.

There's no way It's the weight of the CPU Itself. At an educated guess, I'd give It 85 grams max.

It's packaged In a 6 Inch circular disc with padding, whereby upon opening the disc, the CPU Is neatly placed and protected. I'd say the 450 gram weight you've mentioned, relates to all that. Due to the nature of the packaging, the EB/missing Item method Is well-suited.