The Atlas revolutionary design meets the demands of today's high performance outboards. The one piece design, featuring the innovative Rod and Slot lifting system, will handle the stresses from the heaviest and most powerful outboards, up to 300 Horse Power on the market today. All of the hydraulics are built into the jack eliminating the necessity of installing pumps and reservoirs inside the transom. The all new hydraulic unit is fast too. Lifting from bottom to top in 8 seconds. Setback: 12 Inch Hydraulic Rise: 5-3/4 Inch Total Rise: 8-1/4 Inch To 9-3/4 Inch Horsepower: 300 Horsepower Adjustment: 7 Inch Vertical Finish: Polished Color: Silver Material: Aluminum With Rocker Switch: Yes With Relay Harness