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Vantec RDFR21 Speed Controller
A very compact dual-channel speed controller for smaller bots. This is a good choice controller for the beginner builder who is using motors that draw low current
 $232.88
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Vantec RDFR22 Speed Controller
One of the most popular models for Combat Robot use. This is also a very compact dual-channel speed controller for smaller bots.
$262.88
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Vantec RDFR23 Speed Controller
This is a great controller if you're looking to move into larger robots. Due to it's higher power handling, it is a good choice for up to Middleweight robots (120 lbs).
$317.88
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Vantec RDFR33 Speed Controller
When you're intending to power your bot with some of the more current-hungry motors out there, it's time to beef up to a larger speed controller. The RDFR33 is a whole new design over the RDFR2x series.
$442.88
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Vantec RDFR36E Speed Controller
Now we're getting serious. The RDFR36E has a thick, extruded aluminum case to assist in heat dissipation, and can handle much more current than the some of the other models.
$489.88
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