HS = HiTEC Servo
HSB = HiTEC Servo Brushless
HSG = HiTEC Servo Gyro
HSR = HiTEC Servo Robotic (Continous Rotation)
HLS = HiTEC Servo Linear
HS-M = HiTEC Servo Magnetic Encoder
D = HiTEC Servo 32 bit digital
DB = HiTEC Servo 32 bit digital
Brushless MD = HiTEC Servo Magnetic Encoder
32 bit digital MS = MULTIPLEX Servo
3 digits = analogue servos
4-digit = digital servos
A = (Advanced Gear) extra strong gear
BB = Ball bearing
BH = Ball bearing, up to 8,4V*
CRH = Continuous Rotaton
H = in the 2nd position = High Voltage up to 8.4 V*
HB = Carbonite® gearbox with ball bearing
HD = (Heavy Duty) Karbonite® gearbox
HSB = Brushless-motor
HSG = (Yaw) gyro servo
HSR = Robotic servo
HW = strong plastic gearbox up to 8.4V*
M = Magnetic encoder
MG = Metal gearbox (always with ball bearing)
MH = Metal gearbox, up to 8.4V*
MW = Metal gearbox, 4.8V to 8.4V*
SG = Steel gearbox (always with ball bearing)
SGT = (Steel Gear Torque) Steel gearbox for high torque
SH = Steel gearbox, up to 8.4 V
SHR = (Steel HV Rudder) rudder servo
SHV = Speed, up to 8,4V*
SW = Steel gearbox, up to 8.4V*
TG = Titanium gearbox (always with ball bearing))
TH = Titanium gearbox, 6,0V up to 8.4 V
TW = Titanium gearbox, bis 8,4V*
W = Wide Voltage
WP = waterproof to IP 67
Analogue servos (HiTEC)
Some functions are only available with recent D-series servos. 5XXX and 7XXX series (HiTEC):