Help Understanding 2.5mhz and 5mhz bands with Chromcast

Keep the discussion civil and on-topic. I suggest that those participating here acquaint themselves with the forum rules.

Sent from my Galaxy Note II
 
The vast majority of people only a 2.4Ghz router and most 5 Ghz routers are Dual band. Also, 2.4Ghz band has greater range than 5 Ghz. Chromecast is only $35 and if they had 5 Ghz supported it would require more expense hardware and would have to pay the license fee for the upper 5 Ghz band. Chromecast just extended the life of my dumb 2007 HDTV another couple of years till I buy a smart TV that has all the same features.
 

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