The sw1211sg is the premier waterproof digital servo in the savox lineup. This coreless servo has 208. 3 oz-in of torque and a speed of. 10 at 6. 0v. It combines leading edge technology with super high 12-bit (4096) resolution and steel gears for one versatile and waterproof servo! This is a great upgrade if your looking to drive your rc vehicle in any condition. Rain, sleet, or snow. Savox sw1211sg servo features: combines leading edge technology with super high 12 bit (4096) resolution coreless motor provides high speed, incredible efficiency, and low power consumption extremely strong steel gears ensure long-life and durability the aluminum case design not only looks good but also allows for cooler and smoother operating temps ideal for rc cars, trucks, buggies, and boats spec check: dimensions(mm): 40. 6x20. 7x42. 0 weight(g): 71 speed(@6. 0v sec/60):. 10 torque(@6. 0v oz-in): 208. 3 speed(@7. 4v sec/60):. 08 torque(@7. 4v oz-in): 250 gear: unique steel bearing: 2bb case: aluminum 25 tooth spline (sav-sw1211sg)