This is a MTH 501034 O Scale DCS WiFi Unit.

This features Simple Setup, Stand Alone or Network Operating Modes, Accessible from iOS or Android Smart Phones and Tablets, 802.11n,

LED Indicators, Operates On Standard AC Wall Power, Includes Power Supply & USB Cable.

Requires TIU Updated With DCS Software Code 5.0

Unit Measures:25x35 mm.