For those using Corsair 750D cases, here's a quick mod to improve cooling for lower-left most drive cage. I was having thermal issues during summer time parity checks and this solved it. :
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Corsair Obsidian 750D Full Tower Case Review - Page 4 of 6 - Legit Reviews
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Obsidian Series™ 750D Full Tower ATX Case
Building in the Corsair Obsidian 750D - Corsair Obsidian 750D Case Review
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Corsair 750d hdd cage 3d print - Cases and Mods - Linus Tech Tips
Review - Corsair Obsidian 750D Full Tower Case
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Building in the Corsair Obsidian 750D - Corsair Obsidian 750D Case Review
Corsair Obsidian 750D Full Tower Case Review - Page 4 of 6 - Legit Reviews