4×8×4 Small Hub (2-Ports, 6x AAA) (Part 28738)
The smallest of the Powered Up hubs, this one is designed to work best with System models thanks to the studded top and bottom.
It is also sometimes referred to as the "City Hub".
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A label for this part is included in my LEGO Brick Labels collection.
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Year-over-year comparisons versus 2018-2022. (2024 not included because too few sets have been released and inventoried at this time.)
Date Added: 2024-02-21 12:00:00