I Expanded My GPU Rental Fleet to 6 Cards — Here's What Happened to My Earnings A few weeks ago I wrote about renting out my single RTX 3060 on Vast.ai for passive income. The experiment worked better than I expected, so I did what any reasonable person would do: I went and dug out the five other GPUs sitting in my storage room. This is the honest follow-up. What actually happened when I went from 1 GPU to 6. The Backstory I had a bunch of GPUs from an older setup — two RTX 3070s, one RTX 3080, and two more RTX 3060s. They were collecting dust. The PC they came from got upgraded, the cards went into cardboard boxes, the boxes went under a shelf. Total VRAM across all six: around 62GB. Combined retail value when new: probably $3,000+. Current value sitting in boxes: $0/month. The math wasn't complicated. What the Expansion Actually Took Here's what I underestimated: it's not just "plug cards in, profit." The hardware side You can't just stack 6 GPUs into a regular PC case.…