Miscellaneous
Power Supply (18 VDC, 5 A)
Has a remote control connector and switch on the rear panel so units can be connected in series or parallel.
This power supply has a remote control connector and switch on the rear panel, so units can be connected in series or parallel with each other to provide higher voltage, higher current, and higher power output.
https://www.pasco.com/products/lab-apparatus/instrumentation/power-supplies/se-9720#specs-panel