Its no “Mystery” where these ESCs are made, now they are available to you at HobbyKing prices.

Built with imported N-Channel mosFETs and an ultra fast Atmel MCU & heartbeat make this a high performance ESC with excellent sync capabilities. This ESC has a 4A SBEC for solid reliable servo power.
Programmable via an R/C controller.It allows you to program all functions to fit your specific needs, which makes it efficient and user friendly.

Features:
Extremely low internal resistance
Super smooth and accurate throttle linearity
Over heat and over-load protection
Auto shut down when signal is lost or radio interference becomes severe for more than 2 seconds
Supports high RPM motors
Power arming protection (prevents the motor from accidentally running when switched ON)
New Advanced programming software

Programming features:
Brake setting (we recommend using brake for only folding props applications)
Battery type(LiPo or NiCd/NiMh)
Low voltage cutoff setting
Factory default setup restore
Timing settings (to enhance ESC efficiency and smoothness)
Soft acceleration start ups (for delicate gearbox and helicopter applications)
Governor mode(for helicopter applications)
Motor rotation( clockwise\counterclockwise)
Switching frequency
Low voltage cutoff type (power reduction orirnmediate shutdown)

Factory default settings:
Brake: off
Battery type Detect: LiPo with Automatic Cell
Low voltage cutoff threshold: Medium (3.0V/65%)
Timing setup: Automatic
Soft Acceleration Start Up: Medium
Governor mode : OFF
Frequency : 8kHz
Low voltage cutoff type: Reduce power

Spec.
Cont. Current: 70A
Burst Current: 90A
Battery: 2-6 Cell Lipo / 5-18 Cell Ni-XX
SBEC: 5.5V/ 4A Output
Size: 57*31*12mm
Weight: 53g