Welcome back — Colin here. In this video I’m reviewing the SMSL DAC Mini, a DAC that’s literally designed to sit under a Mac Mini, and as a Mac Mini user I was genuinely excited. The concept is excellent: the silver anodized finish matches the Mac Mini almost perfectly, you get a short USB‑C cable made for stacking, and internally it’s using an ESS 9039Q2M with a built-in low-dropout linear power supply, which is pretty wild for how thin it is. My favorite detail is the orange button that pops up a lever to physically press the Mac Mini’s power button — if your Mac lives under a monitor like mine, it’s a real quality-of-life upgrade. Sound-wise it’s classic ESS: clean, detailed, and a bit bright up top. Compared to the Mac Mini’s headphone jack, I got better detail and a wider stage, plus you get proper format support (up to 32-bit/768kHz and DSD256). But there are serious problems: stacking it under the Mac Mini causes WiFi interference (audible buzzing during network activity and even slower WiFi speeds), early firmware left macOS volume stuck at full output, and the unit can slip a bit when stacked. Bottom line: I only recommend it if you’re on wired Ethernet; otherwise, you’re better off with another DAC.