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BYKSKI Water Block use for Sapphire Radeon R9 390 Nitro/ 390X Tri X /Full Cover Graphics Card Copper Radiator Block RGB|water block|gpu radiatorgraphics card water - AliExpress
UPDATE]AMD AIBs Prepare Cost Effective Radeon R9 390 Models With 4 GB Memory - Sapphire, XFX and PowerColor Ready With Custom Variants