Seller Description: 
This comes from a surplus of esk8 parts that were purchased during the pandemic.  There are four units available for sale.  All FSESCs are brand new in the original packaging with all accompanying accessories. They have only been bench tested to verify that they are working.

Manufacturer Description:

The Flipsky ESC is based upon the VESC Open Source Project, and compatible with VESC Software.

The Flipsky ESC is a highly modifiable electronic speed controller designed for DIY Electric Skateboards conversions in mind.

The Flipsky ESC allows you to use sensorless motors to achieve smooth start-up from a stop,while traditional RC ESC's may have trouble starting. It also provides strong reliable and progressive electric braking.

Specs:

◆Hardware:V4.12
◆EPRM:60000
◆ Firmware: the latest firmware version
◆ PCB:4 layers, size: 40*60mm
◆ Current: 50A continuous / 240A peak,values depend on the mounting and ambient temperature around the device!
◆ Voltage: 8V-60V (Safe for 3S to 12S LiPo,Voltage spikes may not exceed 60V!)
◆ Recommended 10S battery
◆ BEC: 5V@1.5A
◆ BEC type: Internal driver support 
◆ Timing: Software calibration 
◆ Motor control interface: PPM signal (RC servo), analog, UART, I2C, 
  USB or CAN‐bus. 
◆ Cutoff Voltage: Programmable
◆ Frequency: PWM input 
◆ Governor: No
◆ Weight: 80g
◆ FSESC4.12 Size: 110x40x20mm
◆ Programming card: No
◆ Reverse: Yes
◆ Motor wire: 12AWG
◆ Power cable: 12AWG

Warm tips: please do not remove the shrink to protect the pcb electronics components from impurites or metals which result in short circuit or esc burnt damage.

The shipping package contains:

1*FSECS4.12
1*Mini USB 
1*VESC Sensor Wire
1*Manual