Cooler master MWE 550 V3 PSU - RMA unit

There’s 3+ years warranty remaining.

This is my first time selling stuff here, so here’s a couple of rules for my sanity:

  1. I suck at haggling/negotiating. So, the price is fixed and will just drop the price next week by 500 if it’s still not sold by then.
  2. Buyer must arrange shipping (I’m available 24/7 for pickup). I would prefer someone with existing trader rating, because I am a noob here.
  • I bought V2 version in Nov 2023 when my corsair psu failed due to grid issues.
  • Had another high voltage incident issue in may 2024, so warranty replaced it.
  • Again had an issue recently (July 2025), so this is a new V3 unit (supports ATX 3.1) provided as replacement. It took a week for warranty, so I upgraded a MSI 650W psu to avoid downtime.

There’s an entire lore post about my local grid voltage issues.

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When you say the buyer must arrange shipping, can you provide the probable shipping box dimensions and weight?

I plan to just ship the box as is. it’s roughly 10 x 8 x 4.5 inches (length x width x height).

Paid for PSU and already picked by courier.

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Received PSU on few days back. Looks good, but haven’t got around to testing it yet. Left feedback. @meow Please do the same.

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