Digitrax
LocoNet Universal Interconnect Panel

Universal Panel - Includes (2) LocoNet RJ12s, (3) Throttle RJ12s
Walthers Part # 245-UP5, p. 806 Walthers 2012 HO Scale Reference
A scale, $16.95, currently in stock at Walthers
This product is on-sale today for $14.98