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Control Accessories 
The Control Subsystem enables a human operator to maneuver the robot. Commands are issued through joysticks and buttons on the Transmitter, and sent via radio signal to the Receiver on the robot. In this way, the robot can be controlled through a combination of manual and autonomous methods.
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Coiled Handset Cable

Put your robot on tether and start testing. At VEX Competitions, you can not test your robot on the Practice Fields unless you have a Tether Cable - no crystal operations are allowed.

  • Connects the 75 MHz Transmitter to the Microcontroller.
  • 18" long unextended. 12' long stretched.
  • No crystals needed.

Our Price: $6.99
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VEXnet Key 2.0

The VEXnet Key 2.0 provides wireless communication between VEX Microcontrollers and VEXnet Joysticks. This key utilizes the new VEXnet 2.0 communication protocol over a custom 2.4 GHz radio.

  • Works with the VEX Cortex Microcontroller
  • Uses VEXnet 2.0 communication protocol over 2.4 GHz data radio
  • Rubber fins help retain key once installed

The VEXnet Key 2.0 is a functionally identical replacement for the current VEXnet key. However, a link cannot use a first generation key on one side and a VEXnet Key 2.0 on the other side of the link.

Internal firmware on the VEXnet Key 2.0 is upgradeable - more information to come soon.

Note: The VEXnet Key 2.0 requires VEXnet Firmware v4.0 or higher on both the VEX Cortex Microcontroller and the VEXnet Joystick. This version includes support for both new and old keys. Visit www.vex.com/firmware to download.


Our Price: $39.99
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4-Wire Extension Cable 12" (4-pack)

Use these 4-Wire Extension Cables to connect VEX I2C Devices with the Cortex Microcontroller or to each other.


Our Price: $19.99
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USB A-A Cable

Cable for connecting VEXnet components to sync and run in tether mode. Includes (1) 6ft VEX USB A-A Cable.

  • Works with the VEXnet Upgrade
  • Works with the VEX Cortex Microcontroller.
  • Works with the VEX ARM9 Microcontroller (available soon).

Our Price: $9.99
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F-F 3-Wire Adapter (4-pack)

These 12" long 3-wire cables have female connectors on both ends. Use them for interfacing VEX components with other non-VEX systems.


Our Price: $19.95
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VEXnet USB Adapter Key
The VEXnet USB Adapter Key has been discontinued. The new VEXnet Key 2.0 is now available.

The VEXnet USB Adapter Key provides 802.11b/g wireless communication between VEX Microcontrollers and VEXnet Joysticks.

  • Works with the VEX Cortex Microcontroller.
  • Works with the VEX ARM9 Microcontroller.

Our Price: $39.99
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Partner Joystick

The Partner Joystick provides much of the functionality of the VEXnet Joystick without the VEXnet components. Connect the Partner Joystick to a VEXnet Joystick via the Partner Port to give two drivers control of an advanced robot or connect directly for to a VEX Microcontroller for tethered control.

  • (2) X-Y Analog Joysticks
  • (8) Top Buttons
  • (4) Back Buttons

Our Price: $29.99
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VEXnet Joystick

The VEXnet Joystick is the next generation of robot control for VEX Robots with the Cortex Microcontroller.

  • Wireless robot control using VEXnet technology.
  • Only compatible with the VEX Cortex Microcontroller.
  • (2) X-Y Analog Joysticks
  • (8) Top Buttons
  • (4) Back Buttons
  • (1) Internal Accelerometer
  • Link (2) joysticks together with (1) VEXnet USB Adapter Key.
  • When using multiple drivers to control a single robot, they must both be using the same type of transmitter -- the VEXnet Joystick and the 75MHz transmitter cannot be mixed.

Our Price: $149.99
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VEXnet System Bundle

The VEXnet System Bundle contains everything you need to get started controlling a VEX robot using the VEX Cortex Microcontroller.

  • (1) VEX Cortex Microcontroller
  • (1) VEXnet Joystick
  • (2) VEXnet USB Adapter Keys
  • (1) VEXnet Backup Battery Holder
  • (1) USB A-A Cable

Our Price: $399.99
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