This is the AquaCraft Marine 45 Amp Brushless Electronic Speed Control.
DO NOT use with LiPo batteries.

FEATURES
Water-cooled aluminum case with cooling connectors
Waterproof

INCLUDES
AquaCraft Marine 45 Amp Brushless ESC with Star or Dean's Battery
Plugs 4mm Motor Connectors and Receiver Connector
REQUIREMENTS
Double Stick Tape (GPMQ4442) or Hook and Loop Material (GPMQ4480) to
attach ESC to boat hull

SPECIFICATIONS
Length: 3.15" (80mm)
Width: 1.5" (38mm)
Height: 0.3125" (17mm)
Weight: 3.8oz (109g)
Wire Gauge: 14 gauge
Max Output Power: 900 watts
Motor Connectors: Three 4mm gold-plated bullet connectors
Input Voltage: 12-14 NiMH, NiCd cells, 8-20V input w/o BEC
Output Current: 45A continous maximum, 60A surge maximum
On-resistance: 0.003 ohms
Thermal Cutoff: 230° F (110°C)
Operating Frequency: 8.5KHz
BEC: 5.2V/2A
Timing Angle: 10°