Meet the Copperhead 10 Performance ESC. It takes to the open road as well as it takes to no road at all. This completely new design rounds out the 1:10 scale offerings, positioned between the Sidewinder 4 as the entry-level upgrade and the Mamba X as the extreme performance option. The Copperhead 10 includes CRYO-DRIVE™ Technology, sensored motor support and Data Logging Lite with Castle's signature reliability and performance.

Throughout its development the Copperhead has been put to the test in all types of elements and performed as aggressively, or as stealthily, as desired. Whether on the trail dominating the gates or throwing dust on the dirt track, the Copperhead is power hungry when you need it and oozes smooth low-end power for technical low RPM performance. The Copperhead provides clean and constant power with its user selectable (through Castle Link) 5.5V or 7.5V (6A peak) internal BEC.

The ESC can be installed and calibrated (plug and play) for immediate fuss-free wheel time. Through the interface-free manual programming mode, using your transmitter you can set your low-voltage cutoff, brake/reverse type, brake amount, drag brake, motor type and direction. You can also use the Castle Link Programming Suite on your Windows™ PC, or wirelessly with the B-Link™ Bluetooth™ Adapter and Castle Link app for Android or iOS. Additional Castle Link benefits include access to all firmware updates and added feature sets (at no charge), the ability to download and analyse your collected Data Log, an Intuitive Demo Mode capability, and the option to save setup profiles for multiple vehicles.

For crawler setups or others that do not require an ESC cooling fan, the fan is easily removed with four screws and the fan guard with the Copperhead logo simply clicks back into place on top of the ESC. The Copperhead also emits audible alerts for easy diagnosis of common issues, with a reference chart on the decal included in the box.

Pairing the Copperhead with a Castle 4-Pole 12-Slot sensored motor enables SmartSense™ Technology, which uses the motor's sensors at startup to provide cog-free starts, excellent torque and low-speed drivability. Once the motor is turning, the ESC seamlessly transitions to Castle's ultra-efficient sensorless mode with electronic timing to advance timing automatically for peak performance in all driving conditions.

• Input Voltage Range for 1406-3800Kv Combo: 2S–4S LiPo
• SmartSense™, Sensored Only and Brushed Running Modes
• Selectable 5.5V or 7.5V (6A peak) internal BEC (Battery Eliminator Circuit)
• CRYO-DRIVE™ Technology minimises the amount of time the ESC's electrical components spend generating heat, resulting in improved thermal performance during partial throttle operation
• ESC housed in a durable injection moulded case and potted in waterproof epoxy to protect the electronics and promote efficient heat transfer
• 30mm removable fan and dual use fan guard
• Compatible with S.BUS2 Telemetry Link and Futaba T4PX, T7PX and T7PXR transmitters
• Audible alerts for easy 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
• Data Logging Lite captures and records performance data from your vehicle (Battery Voltage, Battery Ripple, Controller temp, Motor RPM, Motor Temp)
• SmartSense™ uses the motor's sensors at start-up to provide cog-free starts, excellent torque and low-speed drivability; once the motor is turning, the ESC seamlessly transitions to sensorless mode
• Castle Link USB programming kit
• Optional smartphone-based programming with the B-LINK™ Bluetooth Adapter (sold separately); Castle Link App available on Google Play or Apple App Store

• 1x Copperhead 10 ESC with sensor harness
• 1x 1406-3800KV Sensored Motor
• 1x Copperhead decals and Audible Alert Reference Chart
• 1x Copperhead Quick Start Guide
• 1x Sensor port dust cover

• Battery connector — Castle 4.0mm Polarized Connectors, Traxxas® Power Connectors, or Deans® Ultra Plugs recommended

Although the Copperhead 10 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. Confirm that the rest of your vehicle — including batteries, servos, radio and chassis — is also waterproof before exposing it to liquids of any kind. The cooling fan must be removed prior to driving in wet conditions; it is not waterproof.

The motor's sensor connections are not water resistant; water can cause signal loss and loss of sensored capabilities. Apply dielectric grease to the outside of the sensor wire connections after installation and perform routine maintenance after running in wet conditions.