MikroTik ±48V DC-DC Internal Power Supply with 12V 7A output.  For use with CCR "r2" versions or CCR2004-1G-12S+2XS and CRS326-24S+2Q+RM. Simply remove one of the internal power supplies and replace it with the PW48V-12V85W for ±48V installations. Although made specifically for -48V telecom power, the supported input range if from 36V to 57V.