Regulated power supply delivers more power with less heat for more efficient booster operation. Operates up to 4 Five amp boosters. Scale selectable for use with N, HO or large scale. DC Ammeter. On/Off Switch. Integral cooling fan. Design coordinated for use with Digitrax products. One "Y" Cable (P/N YC52) Included for convenience with dual 5 amp protected outputs All secondary devices must be properly fused on their power input leads for their rated capacity. For example if you intend to use the PS2012 to drive a 5 and an 8 amp booster, you must input fuse these devices for ...