The XM series of ESCs have been designed for racing drones. They are an improved version with the basic frequency up to 50MHz and with a faster processing capacity to support high KV motors. This translates into faster throttle response which is ideal for drone racers.
• Designed for drone racers
• Fast processing capacity
• Fast throttle response
• using the advanced processor
• Ultra Low resistance MOSFET
Continuous Current: 30A
Burst Current: 35A
Dimensions: 32 x 25 x 5.8mm
Signal frequency:20-500Hz/ Oneshot125 Ultra high speed
Processor: Silads F396 Microprocessor
Quite nice ESCs. They are smaller than i expected. I think the size in the specs is the size of the little plastic boxes they come with.
I can not say anything bad about these. They work flawlessly. They keep cool although i fly them with just about 24A peak load.
Oneshot125 is something you really want.
I flashed these ESCs with BlHeli 14.85 Multishot Firmware. You should use the Firmware for XRotor 20A ESCs. Be careful flashing the DYS 20a Firmware because this might result in high temperatures on 4S Systems.
Works well with Multishot. Although i think oneshot125 is good enough for most pilots.
So, if you don't want to go straight to the new BlHeli_S ESCs, these ESCs are perfect for you.