What's the difference between NH-D15 and NH-D15S? : Noctua Knowledge Centre
Oddly-Specific PSA: G.Skill's Trident Z memory fits under a Noctua NH-D14 just fine, even though it is not listed for compatibility due to it's 44mm height : r/pcmasterrace
NH-D15
Will I have RAM clearance for NH-D15? (Fractal R5) - Cooling - Linus Tech Tips
Noctua NH-D15 Dual-Tower CPU Cooler Review - Page 5 Of 5 - Modders Inc