Heat Sink

Heat Sink
[Passive] Reduces Ether Rifle overheating by (value)%.
Element	Ice
Category	Support
Equips on	Weapons
Max Combined	75%
Sell Price	2250 G (Rank I)

Heat Sink (Japanese: ヒートシンク, Hīto Shinku) is a Gem in Xenoblade Chronicles that reduces the amount by which Sharla and Kino's Talent Gauges are filled when using auto-attacks and arts. It is only effective on Sharla and Kino's ether rifles, and does not affect the duration of their Cool Off and Doze Off talent arts.

In Future Connected, these can be mined from the Ether Crystal deposit north of Agni's Birthplace.

Gem stats

	Heat Reduction
Rank I	4-10%
Rank II	12-18%
Rank III	20-26%
Rank IV	28-34%
Rank V	36-42%
Rank VI	44-50%

Gem sources

Ways to obtain Heat Sink gems, including completing Quests, trading with NPCs, and completing categories in the Collectopaedia.

Rank I	None
Rank II	None
Rank III	Collectopaedia Fallen Arm - Fruit category complete Quest A Tough Battle
Rank IV	None
Rank V	None
Rank VI	None

Crystal and cylinder sources

Places to mine for Heat Sink crystals, and enemies which drop Heat Sink Crystals and Cylinders.

Rank I Rank I	None
Rank II Rank II	None
Rank III Rank III	None
Rank IV Rank IV	None
Rank V Rank V	Enemy Ancient Daedala

Unique armour and weapons

Unique Armour and Weapons with Heat Sink gems permanently attached to them.

Rank I	None
Rank II	None
Rank III	Weapons Agape Railgun Rock Winder
Rank IV	None
Rank V	None
Rank VI	None