The British Rail Class 325 is an electric multiple unit (EMU) train owned by and operated for the Royal Mail to carry bulk mail. The class consists of four-car sets with dual-voltage 25 kV (AC) and 750 V (DC) power. While the Class 325 cabs bear a resemblance to the Networker family of DMUs and EMUs, the Class 325 is based on the Class 319.