SB5a 5 Amp Smart Booster -- <p>SB5a 5 Amp</p>

The SB5a Smart Booster adds expanded and updated features to a Power Cab DCC system

• Most noticeable is additional power (5 Amps) to run trains and accessories. 
• Your PowerCab used with the SB5a can now be unplugged and used in true walk around fashion.
• Up to 6 cabs can be used with the SB5a (Cab address range 2 through 7). 
• Equipped Cabs have up to six recalls each when used with the SB5a. 
• Use only the power supply included with the SB5a.
• Additional 5 Amp boosters (DB5a) may be added to the SB5a for even more power handling on larger layouts.