Decoders and Accessories

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

DescriptionWorks on DCC or DC (limited operation on DC)Works with loco, accessory, or signal addressingBuilt-In Warm white LED (can be disabled)Up to 3 LEDs may be controlled separately 5v with 3 -...

The WOW101 is a universal decoder for locomotives with DCC-ready 9-pin plugs, or locomotives which cannot accommodate a motherboard or WOWKit. This decoder may be hard-wired or plugged directly into...

The WOW101 is a universal decoder for locomotives with DCC-ready 9-pin plugs, or which cannot accommodate a motherboard or WOWKit. This decoder may be hard-wired or plugged directly into any...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

Our NEW TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

Our NEW TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab...

Our NEW TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab...

Our NEW TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab...

Our NEW TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab...

The TSU-PNP8 is a universal factory board replacement sound decoder suitable for use in many manufacturer’s diesel models such as those made by Atlas, Athearn, and InterMountain Models. It is...

The TSU-PNP8 is a universal factory board replacement sound decoder suitable for use in many manufacturer’s diesel models such as those made by Atlas, Athearn, and InterMountain Models. It is...

The TSU-PNP8 is a universal factory board replacement sound decoder suitable for use in many manufacturer’s diesel models such as those made by Atlas, Athearn, and InterMountain Models. It is...

The TSU-PNP8 is a universal factory board replacement sound decoder suitable for use in many manufacturer’s diesel models such as those made by Atlas, Athearn, and InterMountain Models. It is...

Our NEW TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab...

The TSU-PNP8 is a universal factory board replacement sound decoder suitable for use in many manufacturer’s diesel models such as those made by Atlas, Athearn, and InterMountain Models. It is...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

A true pioneer in the model train industry, SoundTraxx has been creating innovative products for the discriminating model railroader since 1990. We proudly design and manufacture our industry-best...

Our NEW TSU-21PNEM8 is a 1-amp Digital Sound Decoder with 8 function outputs. It is designed for easy plug-in operation when mated to a 21-pin NEM connector. You will feel like you are in the cab...

Fully connectorized installation.Optional support for DCC 9-Aspect control mode, including Lunars.Easy setup with Option Switches and LocoNet programming.Configurable for four solenoid or four...

Add DCC with CD-quality 16-bit 44,100Hz TCS WOWSound® to your DCC Sound-ready ACS-64, as included in the Amtrak® City Sprinter train set. Not required for current separate-sale ACS-64 models, which...

HO/S/O/G Scales16 sound channels and 128 Mbit of “Y-size” sound memory deliver “high-definition” audio.High-capacity wired Mobile DecoderSupports faster SPJ download and higher sound qualityDual 8...

The PR4 makes decoder programming and interfacing your layout and computer easier than ever. The PR4 seamlessly switches between computer interface and decoder programming modes automatically without...

NCE DCC  

4-Pack of NCE HO scale universal decoder with 3.5-inch hard-wire harness. 4 functions and 15 different ligh

D13J Decoder - New Smaller Replacement For D13SRJDirect Plug In to Athearn and Other LocosEquipped With NMRA 9 Pin DCC “Quick Plug”Silent Running, Torque Compensated Motor DriveTorque Compensation...

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3For for Kato 4-8-4 FEF-3 and similarDrop-in light board replacement1.0 Amp/2 Amps Peak4 FX3 Functions, 200ma Output8...

The full featured, 8 function, hard-wire, G-Scale decoder is tough enough to provide power for large engines, yet capable of creeping at ultra-slow speed due to the excellent TCS auto-adjusting BEMF...

This 1-amp Digital Sound Decoder simply plugs into models equipped with an NEM-supported 21-pin socket.The ECO-21PNEM can be wired to a CurrentKeeper (P.N. 810140) to maintain performance over dirty...

HO Mobile Decoder with SoundFX v3+16 sound channels and 128 Mbit of “Y-size” sound memory deliver “high-definition” audio.Supports faster SPJ download and higher sound qualityDual 8 Ohm 16 x 26 x 9mm...

Fits many Atlas N locomotivesMobile Decoder with SoundFX8 Ohm 9x18x4 mm oval speaker1.0 Amp/2 Amps Peak4 FX3 Functions, 200ma output

Fits several Atlas N locomotivesMobile Decoder with SoundFX8 Ohm 9x18x4 mm oval speaker1.0 Amp/2 Amps Peak4 FX3 Functions, 200ma output

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3For Kato SD40-2 and similarDrop-in light board replacement1.0 Amp/2 Amps Peak4 FX3 Functions, 200ma Output8 Ohm...

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3For Kato SD80 MAC and similar1.0 Amp/2 Amps Peak4 FX3 Functions, 200ma Output8 Ohm 9x18x4 mm oval speaker100uF...

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3For Kato N P42 and similar1.0 Amp/2 Amps Peak6 FX3 Functions, 200ma Output8 Ohm 13mm round Speaker100uF Capacitor

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3Fits many larger locomotives4 Amp/5 Amps Peak8 FX3 Functions, 300ma Output8 Ω Box Speaker330uF CapacitorNew sound ...

The #11130 Servo Controller adds servo control to DCC, AirWire, Bluetooth, or other locomotive control decoders with auxiliary/function output. Allows control of Kadee® RC Remote Couplers (factory...

The Switch-8 MK2 is all new with easy programming no jumpers are required, and on board display.Switch-8 MK2 Features:Control for 8 Tortoise switch machinesRemembers the position of switch during...

This 1-amp Digital Sound Decoder simply plugs into models equipped with an NEM-supported 21-pin socket.The ECO-21PNEM can be wired to a CurrentKeeper (P.N. 810140) to maintain performance over dirty...

This 2-amp, universal-style Digital Sound Decoder is suitable for a wide variety of models from HO to S scale.This decoder includes a connector to easily add a CurrentKeeper (P.N. 810140) to maintain...

Quad switch decoder for Solenoid or Slow-motion turnouts.Configurable for Capacitive Discharge with balky solenoids.Configurable for on/off control of 8 layout lights.Plug and play wire...

Eight 9G servo decoder for 2-position Slow-motion turnouts.Configurable to control eight 3-position semaphores.Works with compatible LocoNet Systems.Plug and play connections.Option setup switches...

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3Fits many HO locomotivesDigitrax Easy Connect 8 Pin HarnessMotor 1.0 Amp/2 Amps Peak4 FX3 Functions, 200ma OutputNew...

HO Mobile Decoder with SoundFX v3+8 sound channels and 128 Mbit of “Y-size” sound memory deliver “high-definition” audio.Dual 8 Ohm 16 x 26 x 9mm Box Speaker supports stereo like sound1.0 Amp/2 Amps...

Fits Kato, Athearn Genesis, Stewart, other HO locomotivesDrop-in light board replacement1.0 Amp/2 Amps Peak8 FX3 Functions, 200ma Output8 Ohm 26x16x9 mm box speaker w/330uF Capacitor

HO Mobile Decoder with SoundFX v3+8 sound channels and 128 Mbit of “Y-size” sound memory deliver “high-definition” audio.Fits many Locomotives with 8 pin DCC medium plug8 Ohm 16 x 26 x 9mm Speaker1.0...

A full featured, 4 function, 3.5" (88.9mm) harnessed decoder with a built in Keep-Alive™. The built-in Keep-Alive™ will keep your locomotive operating for 6-15 seconds without power (dirty track, bad...

Fits many Kato HO legacy locomotivesDrop-in light board replacement1.0 Amp/2 Amps Peak8 FX3 Functions, 200ma Output8 Ohm 26x16x9 mm box speaker w/330uF Capacitor

Fits Kato AC4400 or compatible HO locomotivesDrop-in light board replacement1.0 Amp/2 Amps Peak8 FX3 Functions, 200ma Output8 Ohm 28 mm round speaker w/330uF Capacitor

Fits Kato SD38-2 or compatible HO locomotivesDrop-in light board replacement1.0 Amp/2 Amps Peak8 FX3 Functions, 200ma Output8 Ohm 28 mm round speaker w/330uF Capacitor

Fits Kato FP40-PH or compatible HO locomotivesDrop-in light board replacement1.0 Amp/2 Amps Peak8 FX3 Functions, 200ma Output8 Ohm 28 mm round speaker w/330uF Capacitor

This decoder is a T6 decoder with built in Keep-Alive™, and will keep your locomotive operating for 6-15 seconds without power (As a result of dirty track, poor contacts, etc.). This decoder is...

Features:DG583S fits all large scale locos.Easy installation with screw terminals for all wire connections.Decoder Lock equippedSpecificationsCurrent Rating-Motor5.0 Amps (10.0 Amps Peak)Size1.45” x...

HO/S/O/G ScalesHigh-capacity wired Mobile Decoder5 Amp/7 Amps Peak8 FX7 Functions, 200ma Output

Features:DG583AR fits locos with AristoCraft DCC plug arrangement.Use with locos that have two motors per truck such as AristoCraft SD45.Decoder Lock equippedSpecifications:Current Rating-Motor 5...

High-capacity wired Mobile decoderFits many larger locomotives4 Amp/5 Amps Peak8 FX3 Functions, 300ma Output

Fits E24 plug N locomotives and compatible unitsPlug-in E24 socketMotor drive at connector capacity13 FX7 Functions, 200mA capacity8 CV Selectable Steam & Diesel Sound Schemes Included

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3Fits Atlas N FA-1 locomotive and othersPlug-in Next18 connectorMotor drive at connector capacity6 FX3 FunctionsNew...

This decoder is a T4 decoder with built in Keep-Alive™, and will keep your locomotive operating for 6-15 seconds without power (As a result of dirty track, poor contacts, etc.). This decoder is...

This decoder is a M4 decoder with built in Keep-Alive™, and will keep your locomotive operating for 6-15 seconds without power (As a result of dirty track, poor contacts, etc.). This decoder is...

This hardwire decoder is the smallest decoder with built in Keep-Alive™ that we produce. It will keep your locomotive operating for 6-15 seconds without power (As a result of dirty track, poor...

This M4 decoder (see M4 for more information) comes connected to a 3.5" (8.89 cm) long harness which is terminated with a 8-Pin NMRA plug.

This M4 decoder (see M4 for more information) comes connected to a 3.5" (8.89 cm) long harness which is terminated with a 8-Pin NMRA plug rotated 180 degrees from the standard orientation. This...

This M4 decoder (see M4 for more information) comes connected to a 5" (12.7 cm) long harness which is terminated with a 8-Pin NMRA plug.

This M4 decoder (see M4 for more information) comes connected to a 3.5" (8.89 cm) long harness which is terminated with a 8-Pin NMRA plug rotated 90 degrees from the standard orientation. This allows...

This full featured BEMF decoder with 8 available functions is designed for the LifeLike Proto 2000 HO-Scale locomotives. This decoder has a built in voltage dropping circuit for the front and reverse...

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3Fits many HO locomotives21MTC interfaceMotor 1.0 Amp/2 Amps Peak8 FX3 Functions, 200ma OutputNew sound .spjs...

Features:Wired Mobile Decoder with SoundFX® & FX3 Function for most HO and many N scale Locomotives.Preloaded with selectable generic steam and diesel sound schemesVisit Digitrax Sound Depot to learn...

Dimensions (L x W x H): .51” x 0.27” x 0.11” or 12.95mm x 6.9mm x 2.79mmScale: Z ScaleContinuous/Peak: 1.0/2.0 AmpTotal Functions: 2Function Rating: 60 mA12V Outputs: 2This full featured 2 function...

This decoder is compatible with the NEM651 standard interface found in some N-scale Bachmann and Fox Valley Models locomotives. The EUN651P-18 is wired to a 18mm harness terminated in a 6-pin NEM...

This full featured 2 function BEMF decoder is designed specifically to meet the needs of Z and N-Scale modelers who are converting their Z and N-Scale locomotives to DCC. Included is our...

This full featured 2 function BEMF decoder is designed specifically to meet the needs of Z and N-Scale modelers who are converting their Z and N-Scale locomotives to DCC. Included is our...

This full featured 2 function BEMF decoder is designed specifically to meet the needs of Z and N-Scale modelers who are converting their Z and N-Scale locomotives to DCC. Included is our...

This decoder is compatible with the NEM651 standard interface found in some N-scale Bachmann and Fox Valley Models locomotives. The EUN651P-30 is wired to a 30mm harness terminated in a 6-pin NEM...

Your train is no longer limited to locomotive sounds! This 16-bit, universal-style Digital Sound Decoder is the only DCC decoder to replicate railcar sounds and lighting effects. It includes...

Features:DG383AR fits locos with AristoCraft DCC plug arrangement.Use with locos that have single motor per truck such as AristoCraft RS-3 & RDC.Decoder Lock equippedSpecificationsCurrent...

Everything you need to make LocoNet Cables for your layout: Crimper tool for cutting cables to length and attaching plugs to cable ends LT1 LocoNet Tester for t

2 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3Fits many HO locomotivesDigitrax Easy Connect 8 Pin HarnessMotor 1.0 Amp/2 Amps Peak4 FX3 Functions, 200ma OutputNew...

8 CV-Selectable Steam & Diesel Sound Schemes IncludedMobile Decoder with SoundFX v3Fits many HO locomotivesDigitrax 9-Pin HarnessMotor 1.0 Amp/2 Amps Peak6 FX3 Functions, 200ma OutputNew sound .spjs...

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This full featured BEMF decoder with 8 available functions is designed for the LifeLike Proto 2000 HO-Scale locomotives. This decoder has a built in voltage dropping circuit for the front and reverse...

This full featured 8 function BEMF decoder is designed for the HO Scale LifeLike Proto 2000 Series. Included is our auto-adjusting BEMF for outstanding slow speed performance and hassle free set up...

The M4 is a small form factor hard-wire decoder with 4 lighting functions for HO and N scale installations. This decoder is designed for installations where space is limited. This decoder is also...

The CN-GP is a N-scale drop-in decoder for Atlas, Kato, and Life Like locomotives. Examples include the following: Atlas:GP7/GP9GP30/GP40/GP60 Kato:SD40 Life Like:GP18GP60 See the Installations Page...

American Z Line (Type 2) Drop-in 5-Function DecoderThe AZL2D5 is a drop-in decoder for American Z Line SD40-2 and SD40T-2 locomotives. See the Compatibility tab for a full list of compatible engines...

This motherboard is specifically designed to replace the original lighting board in the Walthers Mainline EMD SD70ACe diesel locomotive. Included on this motherboard is a KA4 Keep-Alive™ for smooth...

KATO (Type 8) Drop-in 6-function N-scale DecoderThe K8D6 is a 6-function drop-in decoder for KATO N-scale locomotives. The K8D6-A features two super-bright LEDs on the TOP side of the board for...

KATO (Type 8) Drop-in 6-function N-scale DecoderThe K8D6 is a 6-function drop-in decoder for KATO N-scale locomotives. The K8D6-B features two super-bright LEDs on the BOTTOM side of the board for...

Decoder for head and tail lights The decoder "FL12" that controls the headlights and taillights is equipped with a dimming function. Headlights that used to emit light with MAX power can be dimmed.

The MP-15N is a N-scale drop-in decoder which is designed for the Atlas MP-15 locomotive. See the installation pages for a full list of compatible engines! Back EMF Load Compensation: Provides...

The CN is a N-scale drop-in decoder for older Atlas, Kato, and Intermountain locomotives. Examples include the following: Atlas:GP7/GP9 Old StyleGP30/GP35 Old...