$40 for both
Analog Devices 5B01 backplanes for measurement and analog I/O. Price is for both together. I don't have any modules unfortunately. One of them comes with an attached power supply, see pictures.

Unknown electrical condition, sold as-is.

More info:
https://media.digikey.com/pdf/Data%20Sheets/Analog%20Devices%20PDFs/5B01,02,03,04.pdf

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