The Mamba Monster X 8S is designed for R/C vehicles weighing up to 25 lbs running up to 8S LiPo. It utilises Castle's CRYO-DRIVE™ technology, which reduces the rate at which the ESC heats up and removes heat more efficiently, allowing the setup to handle higher gear ratios in heavier vehicles with longer runs. A unique open housing design increases directional airflow, complemented by a 40mm thermally controlled cooling fan and a forged elliptical fin heatsink to maximise airflow throughout the system.

Constructed around a robust aluminium casing with epoxy potting, the Mamba Monster X 8S is waterproof and built to dominate in the harshest environments. Programming and tuning are available via the Castle Link Programming Suite on Windows™, wirelessly with the B-LINK™ Bluetooth™ Adapter and Castle Link app for Android or iOS, or via on-the-fly adjustments from the transmitter using the Auxiliary wire. When paired with a Castle 4-POLE 12-SLOT SENSORED MOTOR, SmartSense™ mode uses the motor's sensors for smooth starts, excellent torque, and low-speed drivability, then seamlessly transitions to Castle's ultra-efficient sensorless mode.

• Input Voltage Range: 2S–8S LiPo
• Sensorless, Sensored, and SmartSense™ running modes
• Powerful integrated 8A peak adjustable BEC (5.25V–8.0V)
• CRYO-DRIVE™ technology minimises heat generation during partial throttle operation
• CNC aluminium case potted in waterproof epoxy for electronics protection and heat transfer
• Premium forged heatsink with elliptical fins for superior airflow and increased heat dissipation
• Oversized factory-equipped thermally controlled 40mm cooling fan
• Compatible with S.BUS2 Telemetry Link and Futaba T4PX and T7PX transmitters
• Waterproof design for all weather conditions
• Data logging captures motor RPM, battery current and voltage, ESC and motor temperature, throttle input, and more
• Auxiliary wire functionality for on-the-fly adjustments from the transmitter (torque control, max throttle, max brake, drag brake)
• Audible alerts for diagnosis of common issues such as motor-over-temperature and low-voltage cut-off
• Convenient transmitter programming for six common adjustable settings including cut-off voltage and drag brake
• USB and Bluetooth™ programming options via Castle Link
• Optional smartphone-based programming with B-LINK™ Bluetooth Adapter (sold separately; Castle Link available on Google Play and Apple App Store)
• Proudly designed and manufactured in Olathe, KS, USA; backed by Castle Creations' 1-year warranty

• 1x Mamba Monster X 8S ESC
• 1x Castle Decals
• 1x Instruction Manual

• High current battery connector rated for 120+ amps (e.g. Castle CC Bullet 6.5mm, CC Bullet 8.0mm, or 6.5mm Polarized Castle Connectors), soldered to the battery leads
• Castle Link USB adapter and Castle Link Windows software (freely downloadable) for full programming
• B-LINK Bluetooth Adapter (sold separately) for wireless/smartphone programming
• Castle Creations Telemetry Link for S.BUS2 (sold separately) for telemetry with Futaba T4PX or T7PX

Although Mamba Monster X 8S is waterproof, it is not intended for operation while completely submerged in liquid. Always rinse the ESC with clean water after exposure to corrosives or dirt. The cooling fan must be removed before driving in wet conditions — it is not waterproof.

Your Castle ESC is warranted for one (1) year from date of purchase against manufacturing and component defects. The warranty does not cover damages caused by abuse, including incorrect wiring, over-voltage, overloading, improper gearing, improper motor selection, incorrect controller settings, insufficient batteries, or inadequate connectors. Castle does NOT warranty products used in drag or speed run applications.

Always monitor ESC and motor temperatures during the first run after modifying your system.