(HO Scale) Yankee Dabbler-67-SPROD 3 You are looking at a Sprog DCC - Sprog 3 2.5Amp complete DCC Programmer and Small Layout Controller. The power increase is really useful for those wanting to run their layout from DCC, in the most economical way.

SPROG DCC - SPROG 3 COMPLETE DCC PROGRAMMER & SMALL LAYOUT CONTROL YANKEEDABBLER

The power increase is really useful for those wanting to run their layout from DCC, in the most economical way.
With up to 2.5A, the SPROG3 will enable you to run as many as 10 locomotives simultaneously
(typical operating load for N and modern HO locos is under 0.25A each, even for most sound locos!).
Note: Increased current is not generally required for CV programming, as this is specified by the NMRA not to exceed 250mA.