SEHREEFS54 RAW 500 Servo Programable.What stands out SUBMARINE WATERPROOF: 7 Point Seals Magnetic Angle Sensor Pulse Width Modulation Control Fully Programmable w/ REEFS Software What comes in the box(1) RAW 500HD Servo, ProgramableWhat you still needREEFS LINK required for ProgrammingNot sure what else you need to run it? Ask us before you buy — we would rather you leave with a truck that runs than a box that waits on a part. Call 346-365-2987 or come by the shop.Specifications Connector Type Universal Product Length 1.57" (40 mm) Product Width 0.79" (20 mm) Product Height 1.5" (38 mm) Product Weight 2.75oz (78g) Application 1/10 - 1/8 Cars, Trucks Bearing Dual Ball Bearings Bushing Or Bearing Bearing Deadband 2µs Input Voltage 4.8V ~ 8.4V Maximum Servo Speed 0.11 sec/60 deg @ 6.0V, 0.095 sec/60 deg @ 7.4V, 0.08 sec @ 8.4V Maximum Servo Torque 450oz/in @ 6V, 500oz/in @7.4V, 565oz/in @8.4V Programmable Yes Servo Size Category Standard Servo Type Digital Spline Count 25 - Tooth Water-Resistant Yes Manufacturer part number SEHREEFS54. Checking a part against a model you already own? Send us the number and we will confirm the fit before you buy.Why buy it hereRC Hobby Pros is a real hobby shop in Katy, Texas — not a drop-shipper. We have been in RC for 30 years, we stock parts for what we sell, and we fix what you break. Every vehicle gets checked before it leaves the counter and we will walk you through the first run. Come see it at 555 S Mason Rd, Katy, TX 77450 or call 346-365-2987.