The NM-AM4-UxS kit allows Noctua users to upgrade NH-U14S, NH-U12S and NH-U9S coolers to AMD"s AM4 socket (Ryzen). Noctua's NM-AM4-UxS Mounting Kit is an inexpensive way of adding AM4 compatibility to your existing NH-U14S, NH-U12S or NH-U9S CPU cooler.
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