Yes this is correct, C40-9W not C44s. The NS purchased the C40-9W version of these notable locomotives.
NS #8901
The GE C44-9Ws feature AZL’s 7mm motor, dual flywheels, prototype specific details, separately applied grab irons, directional controlled LED lighting, ditch lights, optional front truck with mounted coupler, blackened metal wheels, AutoLatch couplers and they come DCC ready.