This would be NULL as there is no way to contact anyone at upHere Technology for a replacement. After 9 months my CPU temp was going crazy one morning so I removed the AIO to see if the pump had failed. . I couldn't feel it spinning in my hand so I shook Rad to see if I could hear liquids inside and I did, then removed the copper heating plate on the bottom and lo and behold it's jelly-like all over it dirt clogs over. Don't waste money!
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