MPN: XFX 550W PRO550W 80 PLUS Bronze Used ATX Performance Power. Model: XFX PRO550W. Part Number:PRO550W. Form Factor: ATX. With second user power supplies, there may be signs of use - marks, scratches, missing stickers / logos, residual dust, pitting on the big fan finger guard, this is normal, but does not effect the functioning of the product.
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