This is the same valve that other ECU/EMS manufacturers put their own label on. Used and compatible with AEM, Autronic, Link, Hondata, Haltech and many others.
There is a good reason these valves are used by most aftermarket engine management systems, they are very stable and are industrial quality.
Specifications:
Brand: MAC
Part number: 35A-ACA-DDBA-1BA
Type: 3 port solenoid.
12 volts
5.4 watts ,25.4 ohm coil (measured), .45 Amps@12 volts
Full vacuum to 120 psi capable.
10-30 hz compatible, other ranges suitable depending on application.
PWM driven (Pulse width modulation)
Includes 2x Barbed Air Fittings