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Castle Creations

Mamba Micro X2, 16.8V, Waterproof Sensored ESC (4.0MM)

Mamba Micro X2, 16.8V, Waterproof Sensored ESC (4.0MM)

Regular price $89.95 USD
Regular price Sale price $89.95 USD
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Mamba Micro X2, 16.8V, Waterproof Sensored ESC (4.0MM)


  • Input Voltage range 2S-4S

  • Adjustable: 5.5V or 7.5V (2A Peak), default 5.5V

  • Waterproof design.

  • Sensored Motor capable (with optional sensor harness)

  • Additional settings and software updates available via Windows®-based Castle Link software and USB adapter (coupon included with purchase) or the Castle Link App for Android or iOS and a B-LINK Bluetooth Adapter (sold separately)

  • Convenient transmitter programming for six common adjustable settings.

  • Telemetry Ready (Compatible with S.BUS2 Telemetry Link and Futaba T4PX, T7PX and T7PXR transmitters)

  • Auxiliary Wire Functionality allows for “on-the-fly” adjustments such as Max Power and Max Brake.

  • Audible Alerts that will notify you of possible issues with calibrations and error conditions.

  • Designed and manufactured in Olathe, Kansas and is backed by a 1-year warranty.


The Mamba Micro X2 is a refresh of Castle's popular 1:18 scale Mamba Micro X. This new ESC increases the maximum input voltage to 4s. Castle also added DATA LOGGING and CRYO-DRIVE™ TECHNOLOGY; CryoDrive allows the ESC to run cooler and more efficiently at partial throttle. Like its predecessor, it boasts an 2 amp peak BEC, waterproof* and has SENSORED MOTOR SUPPORT. This is the perfect upgrade for 1:18th scale 2WD or 4WD vehicles up to 2.25 lbs. The Mamba Micro X also works well in some 1:10th scale crawlers for low speed operation (no rock racing/hill climbing). You can now purchase the Mamba Micro X2 Crawler Edition ESC paired with Castle's Slate Crawler motors.

Important Product Update, 8/2/2022. Due to ongoing supply chain disruptions, we have been unable to manufacture the Micro X2. The parts in question are integral to the onboard 2-amp BEC. In an effort to provide the Micro X2 for sale again, we have removed the internal BEC and are including our external 10-amp CC BEC (a $24 value) with every Micro X2 purchase. This upgraded BEC has a wider range of BEC voltages and much higher current capacity. The retail price for the ESC and combos has not changed. For instructions on how to install the CC BEC, please visit

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