Fifty amps,
twelve fuses.
One power supply in, 12 individually fused outputs back out. The Power-5 feeds 50A continuous at 5–24V through pluggable terminals that stay reachable even mid-stack, and powers your brainboard through its standoffs.
In production since 2022-11, with a small 2024-10 revision adding extra LDO protections. Same layout, same terminals, same ratings. Changelog in the version history.
Power injection, civilized.
Big pixel installs live or die on power distribution. The Power-5 turns that rat's nest into 12 labeled, fused, pluggable ports: wire each run at the bench, click it in, and read the board's actual voltage off the red display. Outputs sit on two sides (8 + 4), so fuses stay grabbable even with another powerboard stacked on top.
The tidy way to feed a big install.
Every design choice on the Power-5 serves one goal: lots of safe, serviceable power feeds without the bus-bar spaghetti.
12 fused outputs
Each output pairs + and − on one pluggable 5.08 mm connector with its own ATO blade-fuse socket, up to 10A per output. Size every fuse to its wire; the box includes a 5A and 10A assortment.
50A, all night
Three fused barrier inputs (20A each, wire all three) carry 50A continuous: 250W at 5V, 600W at 12V, 1,200W at 24V. Rated thermally for roughly 25 °C above ambient at full load.
Made to stack
Outputs on two sides mean ports and fuses stay reachable under more boards. Wire the inputs first (or keep it on top) and a whole tower of Power-5s stays serviceable.
Reads its own voltage
The onboard display shows live voltage including drop under load, so a sagging supply shows up as a number, not a mystery flicker. Priceless in mixed-voltage stacks.
Faults announce themselves
A blown fuse lights its own indicator on a constant-brightness circuit. Walk up, spot the red light, swap a 10-cent fuse, done.
Feeds the brains too
QPowerPost sends protected power up the standoffs to every brainboard above (1.5A PTC-fused), plus a spare pluggable brainboard-feed terminal if you skip the posts.
Every terminal, labeled.
Quindor's annotated power-flow map of the Power-5. Inputs at the bottom, twelve fused outputs around the edges, QPowerPost in the middle.
Wire all three inputs
Each input terminal carries up to 20A (25A max fuse). The 50A rating assumes all three are wired to your supply; fewer cables lowers the ceiling.
Front 4A, middle 8A
A run fed at its start carries about 4A through that feed; a mid-strip injection feeds both directions and handles about 8A. Interleave heavy and light runs, and plan the feeds with the ultimate power injection guide.
One PSU per board
Never wire two power supplies into one powerboard. One PSU can feed several powerboards, but each board gets exactly one source. House rule, no exceptions.
The numbers that matter.
| Continuous power | 50A recommended max: 250W @ 5V · 600W @ 12V · 1,200W @ 24V |
| Voltage | 5–24V (one voltage per board, one PSU per board) |
| Inputs | 3× 9.5 mm barrier blocks, fused (max 25A ATO each, 20A per input); fork crimps preferred, SV5.5-4 fits Mean Well terminals too |
| Input cable | At least 3× 12 AWG; 10 AWG or 8 AWG preferred for 5V builds |
| Outputs | 12× 5.08 mm pluggable terminals (+ and − together), fuse socket per output, max 10A ATO; cable up to 14 AWG with ferrule |
| Fuse type | LittelFuse ATO (automotive blade) sockets, input and output; blown-fuse LED per output |
| Capacitors | 2× 1,500 µF 35V bulk + 1 µF 50V per output |
| Monitoring | Onboard 7-segment voltage display (reads true board voltage, drop included) |
| Brainboard power | QPowerPost via standoffs + spare 5.08 mm feed terminal, both PTC-protected at 1.5A |
| Thermals | ~25 °C rise above ambient at 50A continuous |
| Mounting | 4× M3 holes (GND); 5× M2.5 QPowerPost positions; board height 30 mm; no components on the back |
| Advised PSUs | Mean Well LRS-350-5 (60A @ 5V) or LRS-600-12 (50A @ 12V); run PSUs at ≤80% |
| In the box | 3× 25A + 6× 10A + 6× 5A fuses, 13 pluggable connectors, full standoff and screw kit |
Revisions, documented.
| Version | Released | What changed |
|---|---|---|
| v1r1 (2024 batch) | 2024-10 | Small revision: extra protections around the onboard LDO. Layout, terminals and ratings unchanged. |
| v1r1 | 2022-11 | Original release. |
Full changelog on quinled.info. There is no HC version of the Power-5; if you need more than 50A, that's the Power-7HC.
Give it a brain. Or compare.
Tidy power. Twelve ports.
One checkout hub: every order starts at quinled.shop, which hands you to the reseller for your region.
Warranty is 6 to 12 months on every board. If something acts up, come to the Discord: we troubleshoot it together, and faulty hardware gets replaced. Hardware by Quindor.
Fuses, connectors and the full stacking kit ship in the box. Bring wire, one power supply, and a Brainboard-32-8L on top to run the show.