Wireless System Accessories -- RPT1 - Wireless Repeater - Includes Expansion Ports for 2 More Repeaters

13.8 Volt, 3 Amp Power Supply -- For DCC Twin System

D13WP 4-Function DCC Control Decoder w/8-Pin DCC Plug -- 1.03 x .63 x .185" 26 x 16.5 x 4.7mm

N12-NEM Plug-In 4-Function Decoder - 6-Pin NEM 651 Connector