NI identifies the RMX-4122 as a “750 W, 0 to 230 VDC, 0 A to 10 A Programmable Power Supply Device” and describes it as a “1U, full-width, single-channel, rack mount DC power supply.” NI also classifies it as a Computer-Based Device and lists USB, LAN, RS232, and analog control options on the model page. Source: https://www.ni.com/en/shop/hardware/power-supplies/model-rmx-4122
The RMX-412x User Manual explicitly includes RMX-4122 in the supported instrument list and places it in the 750 W subgroup with RMX-4120, RMX-4121, and RMX-4123. NI’s family documentation distinguishes these four 750 W models by output range, identifying RMX-4122 specifically as the 0 VDC to 230 VDC, 0 A to 10 A model. Sources: https://www.ni.com/docs/en-US/bundle/rmx-412x-features/page/user-manual-welcome.html ; https://www.ni.com/docs/en-US/bundle/rmx-412x-features/page/rmx-4120-4121-4122-4123-750-w-models.html
For installation of the 750 W models, NI documentation specifies AC line input of 100 VAC to 240 VAC at 50 Hz or 60 Hz. The same installation guide notes the detachable power cord type for North America as NEMA 5-15P to C14, with regional equivalents for other markets. These details apply to the RMX-4120/4121/4122/4123 750 W group rather than confirming any included accessory in a used listing. Sources: https://docs-be.ni.com/bundle/rmx-412x-seri/raw/resource/enus/376814b.pdf ; https://www.ni.com/docs/en-US/bundle/rmx-412x-features/page/rmx-4120-4121-4122-4123-750-w-models.html
