Reliable 3–12S power for high-performance FPV builds

Supports 3–12S LiPo (8–60V) — plenty of voltage headroom for X-Class and heavy platforms.
Three built-in BECs: 5V/12V/3.3V for the flight controller, video system and peripherals.
Up to 440A current sensor for accurate telemetry, OSD and flight logging.
Dedicated switched 12V output (12VSW) via PINIO — convenient for powering VTX/LEDs only when needed.
Reinforced power rails for 4 ESCs and neat routing for signals/telemetry.

Description

Matek System FCHUB-12S V2 is a professional power distribution board (PDB) for large FPV quadcopters and X-Class multirotors where stability, clean power and clear diagnostics matter. It accepts a wide 8–60V input range (3–12S LiPo) and distributes it to four ESC channels via heavy-duty copper bus bars designed for high currents. This solution simplifies your wiring: power distribution, signal routing and telemetry connections are all on one board.

To power onboard electronics, it includes three regulators: 5V for the flight controller/receiver, 12V for the video system, and 3.3V for auxiliary modules. The 12V rail operates correctly when the input is at least 12V; below that it follows the battery voltage, which is important to consider when choosing your VTX/camera. A standout feature is the 12VSW output: it can be switched on/off by the flight controller via PINIO — handy for safe start-up, saving power on the ground, or quickly “resetting” the video transmitter.

The built-in current sensor (up to 440A) provides accurate readings for telemetry and log recording, helping you monitor real consumption and spot power-train issues early. The board features short-circuit protection (up to 2 seconds) with auto-recovery, plus LED indicators for the 5V/12V rails for quick power checks during assembly. Compact dimensions and the standard 30.5×30.5 mm mounting pattern make the FCHUB-12S V2 a great fit for powerful custom frames.

Specifications

Input voltage: 8–60V (3–12S LiPo)
Power for 4 ESCs: 4×70A continuous, 4×110A burst
Voltage divider: 1K:20K
Current sensor: up to 440A; ADC output 3.3V; Scale 75
JST-SH 8-pin connector: V (12V or VBAT, switchable), GND, Curr, TLM (BLHeli32), S1–S4
5V BEC: 5.1V ±0.1V, 5A continuous, up to 6A burst; short-circuit/overload protection, auto-recovery (up to 2 s)
12V BEC: 12.0V ±0.2V (with input ≥12V), 4A continuous, up to 5A burst; with input <12V output = VIN
12VSW: PINIO control (high/low), up to 2A (VTX/lighting etc.)
3.3V BEC: linear regulator, up to 500 mA
Dimensions: 55×50×6 mm
Weight: 21 g
Mounting: 30.5×30.5 mm, Ø3 mm holes