FOR Power Supply Board RM3-7281 (RK30851) — Compatible with M454, M480, M455dn

Replacement power supply board RM3-7281 (RK30851) designed for use with printer models M454, M480 and M455dn. This unit corresponds to part numbers RM3-7281 and RK30851 and serves as a direct-fit replacement for the original power supply board in those models. Ideal when the existing power board fails or needs replacement to restore printer operation.