Spektrum S615 servo seems fine but it does not come with servo arms, or screws, or mounting hardware, or manual. You will need a 25T horn, and I believe the screw to connect the horn has to be M2.5 x 6mm (I still need to order that myself). This servo has 90 degrees of motion. It has an 8 inch cable. Dimensions of the main body box are 1.14" tall
...Read MoreRead more about Spektrum S615 servo seems fine but itx 0.6" wide x 1.4" deep, not counting the mounting tabs. Recommend comparing this basic servo to pricier ones that come with everything you need. Read LessRead less about Spektrum S615 servo seems fine but it