Cisco Systems AC/DC
power supply ADP-30RB.
P/N: 34-0874-01.
Input: AC 110-240V, 50/60Hz, 1.0A.
Output: DC +5V, 3.0A; +12V, 2.0A; -12V, 0.2A; Max. 30W.
Fully tested and cleaned, works like new.