SKU: 1623
$49.95 Buy Now

This motherboard is designed to replace the original lighting board in Atlas and Kato diesel locomotives. Included with this motherboard is a KA4 Keep Alive® for smooth operation over troublesome tracks. Pair with a WOW121 for unparalleled sound and interruption-free performance.

NOTE: This product does not function without a decoder. Pick up an EU621 or WOW121 decoder to use this product.

Dimensions: 1.8” x 0.67” x 0.21” or 46mm x 17mm x 5mm
Scale: HO Scale
Motherboard Literature

One Year Goof Proof Warranty

All decoders are covered by a one year goof proof warranty. Please return in a small box.
You MUST register the failed decoder on our website at
Follow the instructions on the website before returning any decoders to TCS.