Is my psu local and bad

tomorrow i bought a cooler master 400w psu but it didn't came in a box , the seller told me that it doesn't come with a box but he handed me a warrranty card for 2 years on this psu , it has 17 amp on 12v rails and i had seen pictures of coller master 400w model on internet and it is the same that i have but how can i know that he didn't cheated me witha cheap 200w psu with a sticker of 400w of cooler master please help me .
my pc specs
intel core 2 duo e7500 @ 2.93 ghz
gpu-sapphire radeon hd 6670 1gb ddr5
mobo- as3u3s3 p5kpl am in
and if its the real cm psu will it be sufficient for my pc .
2 answers Last reply
More about local
  1. Check the serial number of the psu to see if it's legit. See see below for "Warranty Check"
  2. To check if its sufficient for your needs, you check it on this:
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