This is the S9075SB Serial Bus Digital Programmable High Torque Servo from Futaba. FEATURES: Compatible with the Futaba S.Bus System Servo can be easily programmed with the SBC-1 Channel Setting Tool, S.Bus receiver or PCLink software Equipped with metal gears Also compatible with Futaba receivers and transmitters manufactured after 1982 One year limited warranty through Hobby Services beginning at date of purchase INCLUDES: Futaba S9075SB Serial Bus Digital High Torque Servo, 0.83" (21mm) round servo horn, 1.8" (45mm) round servo horn, 1.5" (38.5mm) four point horn, 1.2" (32mm) six point horn, four rubber grommets, four metal eyelets, four mounting screws and instruction sheet REQUIRES: Programming, installing in model and connecting linkage SPECS: Dimensions: 1.59 x 0.83 x 1.47" (1-5/8 x 13/16 x 1-1/2") (41 x 21 x 38mm) Torque: 425 oz-in (31 kg-cm) at 6.0V Speed: 0.14 sec/60° at 6.0V Weight: 2.5oz (71g) jxs 11/15/10 ir/jxs