I have a RB153 with:
- 1 x Mikrotik R52
- 1 x Ubiquiti SR5
- 1 x Senao NL2511+
It's my Mikrotik Test Board.
The max power consumption is:
2,475W NL2511+ (as declared on web-sites, becouse on datasheet they declare <=280mA-->0,924W)
Max RB153 Power Handle: 13W, so I'm at the power limit.
I'm stressed it on a test environment (bandwidth test, encryption, ecc...), and it's rock-stable!