Avalon 3300-03 Plus PSU for A1066 A1066pro A1166 A1166Pro A1246
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Avalon PSU3300-03 Plus 3300W | Genuine Power Supply for AvalonMiner A1066, A1166 & A1246
The Avalon 3300W PSU3300-03 Plus is the genuine replacement power supply for the full range of Canaan AvalonMiner A1066, A1066 Pro, A1166, A1166 Pro and A1246. Universally compatible across these models, it restores original-spec performance to miners suffering from PSU failure, partial output loss, or unstable voltage. Wide 200-285VAC input, combined 3300W output rating across main and auxiliary rails — clean, stable power for full-load SHA-256 hashing on Avalon hardware.
Drop-in form factor matches the Avalon original chassis. Installation is straightforward: shut down and unplug the miner, remove the four retaining screws, slide out the old PSU, slide in the PSU3300-03 Plus, reconnect the Molex output harness and PCIe signal cable, re-torque the screws, reconnect mains via a C19 cable rated for 16A, and power on.
When to Replace the PSU3300-03
- No output — PSU fails to start, miner stays dark.
- Unstable voltage causing miner restarts — output sagging under hashing load.
- One leg of the PSU offline — partial output, hashboards report missing power.
- Blown primary MOSFET — common failure mode after surge or extended thermal stress.
- Fleet refit — preventive PSU swap on aging A1066 / A1166 / A1246 units to keep production uptime.
Avalon PSU3300-03 Plus Specifications
| Parameter | Specification |
|---|---|
| Model | PSU3300-03 Plus |
| Input Voltage | 200-285VAC |
| Input Current | 16A max |
| Main Output | 11.5-14.5VDC, 3100W |
| Auxiliary Output | 12VDC, 200W |
| Total Rated Power | 3300W |
| Compatibility | AvalonMiner A1066, A1066 Pro, A1166, A1166 Pro, A1246 |
| Form Factor | Avalon original chassis (drop-in) |
| Cooling | Integrated high-airflow fan |
| Weight | 4kg |
| Condition | Brand New |
FAQ — Avalon PSU3300-03 Plus
Q: Will this PSU work on a newer A1346 / A1366?
A: No — A1346 / A1366 use the higher-power PSU3400 series (3400W rating, different output voltage envelope). Confirm your miner model before ordering.
Q: Can I run the PSU at 110V US residential mains?
A: No — input range is 200-285VAC. North American installations need 240V service or a step-up transformer rated for the input current. Standard 120V residential won't meet the input voltage minimum.
Q: Board-level repair vs full PSU swap — which makes sense?
A: For mining farms running production uptime targets, swap is faster (10-15 minutes). For benches with electronics expertise and time to diagnose, board-level repair (flyback board, rectifier, MOSFET) can be cheaper per unit. We stock both whole PSUs and common board-level repair parts.
Q: Bulk pricing for fleet refits?
A: Yes — email contact@lys-sz.com for volume pricing and air-freight quotes for urgent fleet repairs.
Related products
- Avalon PSU3400-03 Power Supply (A1346 / A1366)
- Avalon / Canaan PCI-E Signal Cable (A1166 / A1246)
- Avalon PSU Flyback Small Board (PSU3300 / PSU3400)
- L6599DTR Resonant Controller (Bitmain & Avalon PSU)
Mining farms refitting Avalon A1066 / A1166 / A1246 PSU stock in volume? Email contact@lys-sz.com for bulk pricing and air-freight quotes. Worldwide shipping from our Shenzhen warehouse.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
