Mad Shrimps published a review on the Linksys MX5300 Velop Whole Home Intelligent Mesh WiFi 6 (AX) System A quote from the article:

With the MX5300, Linksys is introducing a new mesh WiFi member which sports the latest standards, incorporates more powerful hardware inside and a slightly redesigned chassis. The new towers (nodes) are considerably bigger versus the first generation and are powered by beefier power supplies as well; however, even though ventilation is mainly done from the top area, the units do barely get warm, proving better optimization of the cooling system as well.

  Linksys MX5300 Velop Whole Home Intelligent Mesh WiFi 6 (AX) System Review