genuine I.T.E. alternating current AC Adapter Power Supply PS,
model #: NUA5-6540277-I1,
input : regular US wall outlet electric supply, 3 prong, 110-120 volts,
output : 150 w watts, 54 v volts, 2.77 a amps,
tested and working - output voltage is actually at 72!
yellow tipped barrel connector,
three prong ( grounded ) power cord included.
$10. complete - Can Ship
The lowest cost exact matching unit that I could find is on eBay at $33. with shipping at this link:
https://www.ebay.com/sch/i.html?_nkw=150W+54V+Power+Supply&_sacat=0&_from=R40&_trksid=m570.l1313&_odkw=150W+54V+2.77A+AC+Adapter+Power+Supply&_osacat=0&_sop=15
If you reply to this listing Don't Forget to CHECK YOUR SPAM FOLDER along with Your Inbox for my response!
Will meet serious buyer at mutually convenient location.