Thanks i think i may need to seek advise from the RMA team at Cisco on the basis of how they deal with these situations. it seems like there is no orderable SKU for the MX400 PSU's, so this is only a back end process and nothing that i can spare up for up front. As a Managed Service, It may be the case we replace the Unit with other PSU's cobbled together from other MX400, straight replace the unit, or even long term, replace with the MX250.
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