what are some additional models of the switch?
"HAC-001(-01)" .
Nintendo Switch
An updated version of the Nintendo Switch under model number "HAC-001(-01)" was announced on July 17, 2019, and was released in Japan and North America in mid-August 2019, and in the United Kingdom in September 2019. 
what is master chief (halo)? He  is a fictional character and the protagonist in the "Halo" multimedia franchise. which literary genre did it belong to? Science fiction. what are the different episodes of this franchise? "Halo 2", "Halo 3", "Halo 4", " and Halo Infinite". when did the latter one develop? in 2015. what music was it a part of? "Infinite"s music. who are the collaborators of this music? Gareth Coker, Curtis Schweitzer, and Joel Corelitz. which game did the former produce music for? "Ori and the Blind Forest" and "Ori and the Will of the Wisps", and the "Halo Infinite". when did the first mentioned game release? For Xbox One and Microsoft Windows on March 11, 2015 and for Nintendo Switch on September 27, 2019. when was the initial launch of the latter? 3 Ma when did the pre-release happen? January 2017.
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Nintendo Switch [SEP] Later revisions
An updated version of the Nintendo Switch under model number "HAC-001(-01)" was announced on July 17, 2019, and was released in Japan and North America in mid-August 2019, and in the United Kingdom in September 2019. This revision uses the Tegra X1+ SoC, a more efficient chipset compared to the Tegra X1 used in the original model. Thus, the time-on-battery was effectively extended to 4.5–9 hours, depending on the game played. No other system component was updated in this revision.