Specifications:

• Dimension: 41 x 24 x 6 mm
• Weight: 6.0g/4.2g (naked)
• Operating Voltage Range: 3.5 ~ 10V
• Operating Temperature Range: -10℃~ 80℃
• Servo Frame Rate: 14ms (FS - Normal Speed Mode)
  7ms (HS - High Speed Mode)

Features:

• Compatible with FASST 2.4G: Air Systems (7CH Mode/Multi Mode) & Surface Systems (C1 Mode)
• SB port is compatible with Futaba S.BUS servos and FrSky servo D12MB. No receiver channel limits (except by those on your transmitter) and prevent mismatched servo-channel connections.
• Two selectable failsafe setting options (use native failsafe on radio side or set failsafe on TFR4SB side)
• Improved sensitivity and stability
• Wider and higher operating temperature range, suitable for all kinds of models