I'm looking at these two radio's.
MXT275
Standby current: 300 mA max, 220 mA typical
Receive current, max audio: 900 mA max, 650 mA typical
Transmit current, high power: 3.2 A max, 2.9 A typical
Transmit current, low power: 1.75 A max, 1.5 A typical
Fuse: 5 A
Power wiring: 18 AWG up to 12 ft, 16 AWG for longer runs
MXT575
Standby current: 300 mA max, 250 mA typical
Receive current, max audio: 900 mA max. 650 mA typical
Transmit current, high power: 10 A max, 8.5 A typical
Transmit current, low power: 3.5 A max, 2.5 A typical
Fuse: 15 A
Power wiring: 14 AWG up to 10 ft, 12 AWG for longer runs
Both are good but you get the full 50 watt with the MXT575 vice 15 watt with the MXT275.