This is the S9071SB Serial Bus Digital Programmable 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 dual ball bearings Also compatible with Futaba receivers and transmitters manufactured after 1982 One year limited warranty through Hobby Services beginning at date of purchase INCLUDES: Futaba S9071SB Serial Bus Digital Servo, 1" (26mm) 4-point horn, 1.5" (39mm) 4-point horn, 1.2" (31.5mm) 6-point horn, 4 each rubber grommets, eyelets and screws, instruction sheet REQUIRES: Programming, installing in model and connecting linkage SPECS: Dimensions: 1-7/16 x 9/16 x 1-1/8" (36 x 15 x 29mm) Torque: 4.8V 53 oz-in (4 kg-cm) 6.0V 64 oz-in (5 kg-cm) Speed: 4.8V 0.15 sec/60° 6.0V 0.11 sec/60° Weight: 0.9oz (25g) jxs 06/09/10 ir/jxs