Spedix IS40 40A 2-6S 20x20 4in1 ESC

Type: Esc

IS40 4IN1 MINI is an extremely reliable 20*20mm mount 6S 4IN1 ESC. Limited by the smaller size of 20*20mm ESC, engineers have always used 3mm mini MOSFETs, which are not reliable for 6S.

This compromise made these ESCs vulnerable to damage due to high heat and current/voltage demands of the FPV market. With the innovative design of this 4-in-1 ESC, by separating the control board and the power board, Spedix successfully implemented full-size 5*6mm MOSFETs onto this 20*20mm speed controller.  They are able to present you with a high-performance mini 6S capable 20*20mm ESC of extreme reliability and responsiveness.



  • Innovative double-deck design enables the implementation of full-size 5*6 MOSFET on 20*20mm mini 4IN1 ESC.
  • 40V MOSFET improves the overall reliability in fast response to throttle signals,making the 6 cell input capable in the real world.
  • Silicone rings insulate standoffs, PCB, and parts.
  • Extremely small size makes mounting on smaller frames easier than ever.


  • Input:3-6 Cell LiPo
  • Continuous Current: 40A
  • Burst Current: 50A≤10S
  • BEC: No
  • Current Detection: YES
  • Firmware: BLHeli_S
  • Dimensions: 40x31x8mm
  • Mount Holes: 20x20mm
  • Weight:13.2g


  • 1x Spedix IS40 4-In-1 Mini 3-6S 40A ESC
  • 4x Grommets
  • 4x Standoffs
  • 1x Wire set
  • 1x 470uF 35V Capacitor



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