Building a GPU rig? Why an L14-30P outlet beats L6-30P for your PDU
TheZachMueller · x · 2026-09-25
A developer building a multi-GPU rig shares practical outlet/PDU selection advice:
- Most PDUs use L6-30P (240V-only), which powers PSUs but leaves network gear and Raspberry Pis needing another solution
- He chose an L14-30P (found on eBay), which handles all load types: 12A standard outlets for network gear/Pis, 20A for mid-size PSUs (2400W of cards, NAS), and 30A for 3000W PSUs
- If you bought the wrong PDU, step-down adapters (L14→L6) work as a stopgap while the right one ships
Related event: Practical Guide to Powering Home GPU Clusters with PDUs(3 posts)→
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