ICM42688P
USB Port Type : Type-C
Barometer : Built-in
OSD Chip : AT7456E chip
BLE Bluetooth : Supported.
WIFI : Not supported
DJI Air Unit Connection Way : Two ways supported: 6-pin connector or direct soldering.
6-pin DJI Air Unit Plug : Supported.
Current Sensor Input : Supported.
Power Input : 3S - 6S Lipo(Through G, BAT pins/pads from the 8-pin connector or 8-pads on the bottom side)
3.3V Output : Supported.
4.5V Output : Supported.
ESC Signal :M1 - M4 on bottom side and M5-M8 on front side.
UART : 6 sets(UART1, UART2, UART3, UART4(Dedicated for Bluetooth connection)), UART5(Dedicated for ESC telemetry),UART6
ESC Telemetry : UART R5(UART5)
I2C : Supported
Traditional Betaflight LED Pad : Supported
RSSI Input : Supported. Named as RS on the front side.
Smart Port / F.Port : Not supported
Supported Flight Controller Firmware : BetaFlight(Default), INAV
Firmware Target Name : SPEEDYBEEF405V4

Product Name : SpeedyBee BLS 55A 30x30 4-in-1 ESC
Firmware : BLHeli_S J-H-40
PC Configurator Download Link : https://esc-configurator.com/
Continuous Current : 55A * 4
Burst Current : 70(10 seconds)
TVS Protective diode : Yes
External Capacitor : 1000uF Low ESR Capacitor(In the package)
ESC Protocol : DSHOT300/600
Power Input : 3-6S LiPo
Power Output : VBAT
Current Sensor : Support (Scale=400 Offset=0)
ESC Telemetry : Not supported
Mounting : 30.5 x 30.5mm( 4mm hole diameter)
Dimension : 45.6(L) * 44(W) *8mm(H)
Weight : 23.5g