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Product #: 010-0155-00


We at Castle wanted to address three main concepts while designing a new ESC for the modern-day RC enthusiast; VERSATILITY, RELIABILITY, and PERFORMANCE. These are the pillars of the Mamba X design and the driving forces behind the feature-packed controller.

The Mamba X is extremely versatile, capable of powering a wide variety of applications ranging from 2S to 6S and vehicles ranging from 1/10th scale to 1/8th scale*. Whether you are racing at the track with your 2wd buggy, bashing through mud puddles in your SCT or monster truck, or navigating a hardcore crawling excursion, this controller raises the bar to a whole new level. Pair with a Castle 4-POLE 12-SLOT SENSORED MOTOR to provide precise throttle control and buttery smooth starts!

ESCs have a tough life - landing extreme jumps, experiencing accidental collisions, and splashing through the occasional puddle. As R/C enthusiast themselves, Castle engineers understand this and designed the Mamba X to endure these situations and power through them. It is housed in a rugged CNC-machined aluminum case and then potted in waterproof epoxy. This not only protects the electronics but ensures any heat generated in the controller can easily be dissipated through the case.

The Mamba X integrates a powerful 8A adjustable BEC into a high-performance speed control that can push the most extreme 1/10th scale setups and 1/8th race buggies. Smart-Sense™ allows you to take advantage of smooth, cog-free, and predictable sensored starts and improved throttle response keeps you ahead of the competition.

The Mamba X is proudly designed and manufactured in Olathe, Kansas and is backed by Castle Creations’ 1-year warranty and unparalleled ‘make-it-right’ customer support.  Call us, email us, or walk in our front door – we’re here to help. 


  • Wide 2s-6s input voltage range for powering a wide variety of applications
  • Sensored, Sensorless and SmartSense™ Running Modes
  • Brushless and brushed motor operation
  • Powerful Integrated 8A Peak Adjustable BEC (5.25V-8.0V)
  • Data logging capability to capture and record performance data from your vehicle
  • Auxiliary wire functionality for "on-the-fly" adjustments using your transmitter
  • Compatible with S.BUS2 Telemetry Link and Futaba T4PX and T7PX transmitters
  • Convenient transmitter programming for six common adjustable settings including cutoff voltage and drag brake
  • Dial in ESC settings, update ESC firmware and view data logs with Castle Link USB programming kit (coupon for USB adapter included with purchase, Castle Link software located here)
  • Optional smartphone-based programming, firmware updates and data log viewing with the B-LINK™ Bluetooth Adapter (sold separately) and Castle Link software for iOS or Android (free download)
  • ESC is housed in a rugged CNC aluminum case and potted in waterproof epoxy to protect the electronics and promote efficient heat transfer
  • Waterproof design for all weather conditions
  • Factory equipped thermally controlled (and removable) 30mm cooling fan
  • 12 AWG high strand count silicone coated copper power wires  
  • Integrated Capacitors and 4mm Bullet Connectors add durability in extreme conditions
  • Audible Alerts and LED Alerts for easy diagnoses of common issues such as motor-over-temperature and low-voltage cutoff
  • ROAR and RECON 6 Certified ESC


  • Mamba X ESC with Sensor Harness
  • Coupon for free Castle Link USB
  • Mamba Decals
  • Driver's Ed Guide/ Quick Start Guide

*In 1/8th scale setups, the Mamba X is intended to be used for off-road racing in buggies weighing up to 9 lbs (including batteries and ready-to-run). In these 1/8th scale racing setups, the Mamba X should be run at 4S Lipo (16.8V) max and is recommended to be paired with the Castle 1512-1800Kv (P/N: 060-0062-00) or Castle 1515-2200Kv (P/N: 060-0063-00) motor, with appropriate gearing only.

Mamba X Driver's Ed Guide
Mamba X Quick Start Guide
1:10th Scale Gearing Chart
SMARTSENSE™ Technology
Audible Alert Reference Chart
Maintaining Motors in Wet Conditions
RC Driver Review Mamba X
Making of Mamba X Video
Sensored Motor Quick Start
(Based on 30 vote(s))
13 review(s) | Write a review
  • USD $169.95 /EA
  • List Price: USD $207.95 /EA
Code Availability Quantity
010-0155-00 This item is in stock. EA
Technical Specs
Input Voltage Range: MIN: 2S LiPo
MAX: 6S LiPo (25.2V)
BEC Specifications: Adjustable: 5.5V, 6.0V, 7.5V. or 8.0V (8A Peak), default 5.5V
Operating Environment: Waterproof* design allows for use in nearly any environment.
Brake: Proportional
Reversible: Yes, but may be disabled for racing.
On/Off Switch: Yes
Cooling Fan: Yes, factory equipped (30mm), fully removable** (see Product Use Statements below)
Size: Length: 2.14" (54.4mm)
Width: 1.39" (35.2mm)
Height: 1.18" (30.0mm)
Weight (with wires): 3.56 oz. (101g)
Connectors: 4.0mm female bullets for motor connection.
Items Needed for Operation: Battery Connector required, Castle 6.5mm Polarized Connectors, Castle 4.0mm Polarized Connectors, Traxxas® Power Connectors, or Deans® Ultra Plugs are recommended.
Product Use Statements:

*Although Mamba X is waterproof, it is not intended for operation while completely submerged in liquid. Always rinse the ESC and motor with clean water after exposure to corrosives or dirt. While the motor and controller may be waterproof, we suggest users confirm that the rest of their vehicle, including the batteries, servos, radio and chassis are also waterproof before exposing them to liquids of any kind.

**The cooling fan must be removed prior to driving in wet conditions. It is not waterproof.

Application Guidelines: Intended for up to 6S (25.2 Volt) operation in vehicles weighing less than 7lbs;1/8 scale buggies up to 9lbs/4kg (4s MAX)
Recommended Motors: Castle 1406, 1410 and 1415 Sensored motors and some 15 series for e-buggy setups
Max. Recommended Vehicle Weight: Less than 9lbs/4kg, with batteries, ready-to-run
Programmability: Fully programmable Castle feature set using Castle Link USB adapter (coupon for free link included in package) and freely downloadable Castle Link Windows software, or the Castle Link App and a B-LINK Bluetooth Adapter (sold separately).
Telemetry Link Capable: Yes
Tech Notes:
  1. Mamba X setups frequently hit 100+ amps in peaks and not all LiPos are created equal. Surge ratings should never be used to determine a pack's suitability for a brushless application. Recommended battery capacity for 1:10th and 1:8th scale vehicles is 5000mAh. We recommend using 30C continuous discharge or higher LiPo batteries (or high quality 25C batteries such as Traxxas® Power Cell).
  2. Our experience suggests using only mild gear ratios with NiMH cells. Do not attempt to use NiMH cells in extreme setups.
  3. Applying voltages higher than 25.2V will cause irreparable damage to ESC.
  4. We recommend a high-current connector designed for high-powered electric systems, rated for 70+ amps. Invest in connector sets made for high-powered electric systems such as our Castle 6.5mm Polarized Connectors, Castle 4.0mm Polarized Connectors, Traxxas® Power Connectors, or Deans® Ultra Plugs

For support, frequently asked questions, technical documents, and more, visit our support site.

Castle Creations, Inc. warrants this product to be free frommanufacturing defects for a period of one year from date of purchase.

This is a high power product with the potential to be very dangerous.Please read the safety information before use. This product may containchemicals known to the State of California to cause cancer and or birthdefects or other reproductive harm.

U.S. Patent # 7400103, 7492122, 7579796, 7740516, 8287328, 8678875, and 8905814 B2 - Other patents pending.

Controller designed and circuit boards manufactured, in Olathe, Kansas USA.
Controller assembled in Olathe, Kansas USA.

Product Features

Enabled by default, the Mamba X captures and records performance data from your vehicle. This allows you to view a detailed turn-by-turn record of what your ESC actually experienced during the run. You will be able to record real-time data such as motor RPM, battery current and voltage, ESC and motor temperature, throttle input, and more. Download and analyze the collected data via Castle Link and make adjustments to maximize both performance and battery life. You can use the Quick Connect Duo (sold separately) to allow you to access both wires into a single Castle Link connection. 

The Mamba X allows “on-the-fly” adjustments to be made through the AUX wire once enabled in Castle Link. Once you have selected an AUX wire function, that setting can then be tuned from your transmitter while driving. Torque control, max throttle, max brake and drag brake adjustments are a sampling of the available modes. This real-time tuning allows you to quickly and easily fine-tune your system. Click here for additional information.

For 25 years Castle engineers have been setting the bar for industry leading software functionality. The Castle Link Programming Suite is your ticket to creating the perfect setup. To gain access to the host of tuning parameters, simply redeem the coupon for the Castle Link adapter included with your Mamba X purchase and download the simple to install software from our website and you are ready to personalize your controller's settings. Users will receive free access to all firmware updates, including added features sets using the Castle Link USB Programming Kit or the Castle Link App and a B-Link Bluetooth Adapter. Click here for software versions available for Mamba X.  Don’t forget to use the “check for updates” feature in Castle Link to download new software as it becomes available. New features are yours at no cost, a perk for choosing Castle. Click here for settings overview for the Mamba X ESC. 

You can now WIRELESSLY PROGRAM settings with the free Castle-Link app available on the Apple App store or Google Play for Android devices and the Castle B-Link™ Bluetooth™ Adapter (sold separately). It is compact and lightweight installed in your vehicle, for anytime programming!

When paired with a Castle 4-POLE 12-SLOT SENSORED MOTOR SMARTSENSE™ software, enabled by default in the Castle Link Programming Suite, will use the motor’s sensors to provide smooth starts, excellent torque, and low-speed drivability.  Once the motor is turning, it seamlessly transitions to Castle’s ULTRA-EFFICIENT sensorless mode with ELECTRONIC TIMING. Smooth sensored startups and high-efficiency sensorless running makes the Mamba X system produce more power and less heat. QUIETSENSE™ is an innovative advancement in the design of sensored motors to deliver the highest precision and most efficient startup.

Mamba X also features updated Audible Alerts that will notify you of possible issues with calibrations and error conditions to help diagnose problems in the field.
Click here to see complete list.

Mamba X is telemetry ready, which means owners of Futaba T4PX or 7PX Transmitters will be able to purchase the Castle Creations Telemetry Link for S.BUS2. Real-time data such as ESC temperature, voltages, and RPM can be monitored to ensure performance advantages and spare you the “unknown” parameters that all R/C enthusiasts experience at some point. Telemetry data provides another level of protection and can increase performance.

The Mamba X is proudly designed and manufactured in Olathe, Kansas and is backed by Castle Creations’ 1-year warranty and unparalleled "make-it-right" customer support. Call us, email us, or walk in our front door – we’re here to help. Click here for additional information about our Tier 1 and Tier II warranty.

        Optional Accessories
        B-Link Bluetooth Adapter supports iOS and Android App
        Telemetry Link S.BUS
        Direct Connect Sensor Wire
        Castle Link Quick Connect (or Quick Connect Duo)
        Quick Field Programmer, Surface Version
        011-0065-0 Castle 4mm polarized connectors
        CC Bullet 4mm Castle 4mm Bullet Connectors
        CC Cap Pack
         011-0154-00  Servo Direct Connect

        Service Parts
        011-0108-00  Mamba X-Series Sensor Harness
         011-0106-00  Receiver Harness Replacement
         011-0137-00  ESC Cooling Fan Replacement
         011-0142-00  Mamba X Wire Harness Retainer

        Average rating:
        (Based on 30 vote(s))
        Rate this product:
        David Cee From United States
        Best 1/10 ESC
        July 16, 2023
        The mamba x is my go to 1/10 ESC- I use it in crawlers like trx6 and vanquish vs410, bashers like MT10 and ryft, and racers like et410.2. Endless power and great low speed control. Super easy to program with castlelink.
        0 of 0 people found this review helpful
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        Nathaniel Mccuin From 96150
        Mamba x esc
        July 15, 2023
        The best ESC HANDS DOWN ?? ?? MOST ROBUST and and Durable esc this side of the Mississippi i telll you what! Its got all the power and functionality you need! All Hail castle creations ???? ive had no problems always takes a lickin and keeps on ticken i couldn't ask for more! Thanks castle creations for the amazing product..
        0 of 0 people found this review helpful
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        Charli gagnon From Canada
        Best esc 1/10
        July 14, 2023
        Really powerfully, can run in water, snow, mud, name it. I run it on 4s lipo 2400kv whit big ass track in -30°c whit no problem
        0 of 0 people found this review helpful
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        Buck henry From Pennsylvania
        July 14, 2023
        Can loose with a mambax best esc for multiple rc applications crawler basher on road off road mud water snow 2wd 4wd ect it don't matter the mambax will get u were u need to go I have 6 of them and never had a problem since day one
        0 of 0 people found this review helpful
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        Zach Doarn From United States
        Mamba X my new go to ESC
        July 14, 2023
        The Mamba X has become my new go to 1/10 ESC. I'm running one in several different vehicles from a street basher to Rock Crawlers and it performs beyond expectations in each application. The range of programming is a big reason for my first purchase of the Mamba X. The fit and quality is second to none. Slow speed control is amazing and all the power you need is a squeeze away. Castle creations has always had my business and will continue to in the future.
        0 of 0 people found this review helpful
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        Mamba x my go to esc From United States
        Mamba x My go to esc for racing,crawlingand bashing
        July 14, 2023
        The Mamba X has been my go to esc for years and I have never been let down I have won many races with this system spent many hrs on the rocks crawling and hundreds of hrs on the trail something I can say I can always count on castle creations products to work every time I plug in a fully charged battery and another good thing it's waterproof don't have to fear going though a stream or falling of that bridge into the water it's all part of the fun if you want a dependable esc this is the one
        0 of 0 people found this review helpful
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        T duprie From United States
        crawler use
        July 14, 2023
        best 1/10 scale esc i have ever used with one exception (drag brake) doesnt hold as much as i like but easy to tune and when paired with a slate motor cant go wrong
        0 of 0 people found this review helpful
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        Darrell From Canada
        Best 1/10 esc
        July 14, 2023
        Had 5 of these for 4 years now no problems at all !
        0 of 0 people found this review helpful
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        RcA From Brisbane Australia
        Best Crawler Esc To Date
        June 6, 2019
        I have been running the MX esc for well over a year now , 0 complaints, in my vaterra ascender I have roughly 40h run time, 10h on 4s with the slate 1900kv and 30h on 6s with HH puller pro 2200kv (appropriately tuned) it crawls like Butter, I have all the wheel speed I could ever want, the adjustable drag break works awesome (sanwa m12s dial)
        For high powered servos I reccomend adding a castle bec, this is a very impressive esc and castle has truly outdone themselves with this one .
        Cheers Matt
        1 of 1 people found this review helpful
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        rk From michigan
        mamba x
        August 25, 2017
        I have the mamba x with the sensord 2400 kv motor in my rustler on 4s 76 spur 35 pinion air born at 74 mph on gps I have to gear it down the best set up on the market great job castle love it
        13 of 13 people found this review helpful
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        Tommy23490 From United States
        Mamba X and Slate combo
        May 28, 2017
        I bought the Mamba X and 2850kv slate motor for my Axial SMT10. I was planning on running it on 3s . So far all I've used is 2s and it's more than enough power. It's just as smooth as the brushed system but much more powerful. I was originally trying to decide between this and a Holmes Hobbies Trailmaster. I can't speak about that system but Castles ability to real time data log and a couple other key features helped in making my decision.
        4 of 4 people found this review helpful
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        Chris Herbert From United States
        Love it!!
        March 30, 2017
        Ive got this in my Axial wraith running a 2s and it perfect! Its got all the power id ever need and can handle crawling perfectly as well! I love using the castle link because i can adjust the power curve so its slow off the line and doesn't upset the chassis too bad! I highly recommend it.
        1 of 1 people found this review helpful
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        RCBasser From Belleville, Ontario, Canada
        Mamba X "rocks"
        December 30, 2016
        I just received my Mamba X today. Looks great, very solid piece. I swapped out the Mamba Max Pro I was running in my Yeti for the new Mamba X. With the MMP I always added a capacitor pack and a BEC ... NO MORE with this puppy. I find the internal BEC more than powerful enough and you end up with a "cleaner" looking setup by eliminating the cap pack / bec ( and all the extra wiring they add ) Runs butter smooth on start up really powers my heavy yeti well. This is my first Mamba X, but I have been running 3 Mamba Monster X's all with the same excellent results. These two ESC's have become my "go to" for all 10th or 8th scale applications.
        9 of 9 people found this review helpful
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