This power button has been scrapped off of a used Lenovo ThinkCentre M91p SFF (Small Form Factor) Desktop PC. Power cables works as normal, all connections are as normal. This power button and cable (54Y9916) is supported for the models: Lenovo ThinkCentre M70e Lenovo ThinkCentre M91p Lenovo ThinkCentre M83 Lenovo ThinkCentre M72e Lenovo ThinkCentre M71e Lenovo ThinkCentre M73 Lenovo ThinkCentre M81 Lenovo ThinkCentre M93p Lenovo ThinkCentre M91 Lenovo ThinkCentre M92
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