What drivers to use with 42BYGHW811 Steppers motors

Hi everyone

I have 42BYGHW811 Steppers motors and and RAMPS 1.4 spec for motors is: 2.5 Amp and 3.1V what stepper drivers I should use. I have 5 EasyDriver Boards but I don't see how I can use them because those drivers go only up to 0.750Amps If I buy polulu stepsticks they go up to 2.0Amps and motors are 2.5Amps. And what PSU voltage to use??


Any help is greatly appreciated
Thanks