Drop-In - HO Scale

Digitrax DH187A0 Series 7 DCC Decoder - HO Drop-in AT-Style Board Series 7 Decoder Features Drop-in AT light board replacement, fits Kato, Athearn Genesis, Stewart, other HO locomotives Series 7 Enhanced Decoder Features. Firmware may be user updated...

Digitrax DH187K0 Series 7 DCC Decoder - HO Drop-in AT-Style Board Series 7 Decoder Features Drop-in AT light board replacement, fits Kato, Stewart, other HO legacy locomotives Series 7 Enhanced Decoder Features. Firmware may be user updated using a...

Digitrax SDXH187A0 Series 7 DCC Sound Decoder - HO Drop-in AT-Style Board for Atlas, Athearn, Kato, Stewart and Others   Digitrax decoders ship to us with a preloaded sound scheme but are reprogrammable like other decoder options that we offer...

Digitrax SDXH187K0 Series 7 DCC Sound Decoder - HO Drop-in AT-Style Board for Atlas, Athearn, Kato, Stewart and Others   Digitrax decoders ship to us with a preloaded sound scheme but are reprogrammable like other decoder options that we offer...

Digitrax SDXH187K1A Series 7 DCC Sound Decoder - HO Drop-in Board for Kato AC4400 and Others   Digitrax decoders ship to us with a preloaded sound scheme but are reprogrammable like other decoder options that we offer.  The Digitrax Sound...

Digitrax SDXH187K1B Series 7 DCC Sound Decoder - HO Drop-in Board for Kato SD38-2 and Others   Digitrax decoders ship to us with a preloaded sound scheme but are reprogrammable like other decoder options that we offer.  The Digitrax Sound...

Digitrax SDXH187K1C Series 7 DCC Sound Decoder - HO Drop-in Board for Kato F40PH and Others   Digitrax decoders ship to us with a preloaded sound scheme but are reprogrammable like other decoder options that we offer.  The Digitrax Sound...

NixTrainz Decoder Buddy 12 Output V5B 2.2k Ohm Resistor 21-HW - 21MTC Adapter Board - NEM660 21MTC Integral Connector     Decoder Buddy V5 and V5B The Decoder Buddy V5 and V5B were developed for the 12 output decoders and include a couple...

NixTrainz Decoder Buddy 8 Output Original 2.2k Ohm Resistor 21-HW - 21MTC Adapter Board - NEM660 21MTC Integral Connector     Decoder Buddy V5 and V5B The Decoder Buddy V5 and V5B were developed for the 12 output decoders and include a couple...

NixTrainz Decoder Buddy Mini 1k Ohm Resistor 21-HW - 21MTC Adapter Board - NMRA-NEM660 21MTC Integral Connector   Decoder Buddy V5 and V5B The Decoder Buddy V5 and V5B were developed for the 12 output decoders and include a couple added features...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board     **Be sure to read about Tsunami 2 Speaker Selection here.     Blunami will change the way you enjoy the model railroading hobby!...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board   **Be sure to read about Tsunami 2 Speaker Selection here.   Blunami will change the way you enjoy the model railroading hobby! The BLU-PNP8 is a...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board   **Be sure to read about Tsunami 2 Speaker Selection here.   Blunami will change the way you enjoy the model railroading hobby! The BLU-PNP8 is a...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board XCXD;R''] **Be sure to read about Tsunami 2 Speaker Selection here.   Blunami will change the way you enjoy the model railroading hobby! The BLU-PNP8 is a...

TCS 1343 LL8 DCC Decoder - HO Drop-in Board for Life-Like Proto 2000 with NEM652 8-pin Integral Connector     The LL8 is a 8-function direct-plug decoder designed specifically to meet the needs of LifeLike/Proto 2000 models. The LL8 can quickly...

TCS 1402 LL8-LED DCC Decoder - HO Drop-in Board for Life-Like Proto 2000 with NEM652 8-pin Integral Connector     The LL8-LED is a 8-function direct-plug decoder designed specifically to meet the needs of LifeLike/Proto 2000 models. The...

ZIMO ADAMKL NEM660 21MTC Adapter Board - Screw Terminals     The ADAMxx-series adapter boards are designed for use NEM660 21MTC decoders, including the MX631C, MX634C and MX644C model decoders.CAUTION: This product should not be used with...

ZIMO ADAMKL NEM660 21MTC Adapter Board - Screw Terminals     The decoder is plugged into the male connector of the adapter board which features interface connections and features for easy, convenient installation and improved functionality in...

ZIMO ADAMTC NEM660 21MTC Adapter Board - Hardwire     The decoder is plugged into the male connector of the adapter board which features interface connections and features for easy, convenient installation and improved functionality in large...

ZIMO ADAMTC15 1.5V Function Output NEM660 21MTC Adapter Board - Hardwire     The decoder is plugged into the male connector of the adapter board which features interface connections and features for easy, convenient installation and improved...

ZIMO ADAMTC50 5.0V Function Output NEM660 21MTC Adapter Board - Hardwire     The decoder is plugged into the male connector of the adapter board which features interface connections and features for easy, convenient installation and improved...

ZIMO ADAPLU 1.5V Function Output NEM658 PluX22 Adapter Board - Hardwire     The ADAPxx-series adapter boards are designed for use NEM658 PluX22 decoders, including the ZIMO MX600P12, MX623P12, MX630P16, MX633P16, MX633P22, MX645P16, MX645P22...

ZIMO ADAPLU 5.0V Function Output NEM658 PluX22 Adapter Board - Hardwire     The ADAPxx-series adapter boards are designed for use NEM658 PluX22 decoders, including the ZIMO MX600P12, MX623P12, MX630P16, MX633P16, MX633P22, MX645P16, MX645P22...

ZIMO ADAPLU NEM658 PluX22 Adapter Board - Hardwire     The ADAPxx-series adapter boards are designed for use NEM658 PluX22 decoders, including the ZIMO MX600P12, MX623P12, MX630P16, MX633P16, MX633P22, MX645P16, MX645P22 and MX648P16 model...

ZIMO ADAPLUMTC Adapter Board - NEM658 PluX22 Integral Connector to NEM660 21MTC Integral Connector     Adapter board for connecting PluX22 with 21MTC boards   only necessary with certain 21MTC locomotive boards - e.g. Sudexpress Eurodual,...