Gen 3 All-in-One Standard Cable

The three-in-one Starlink cable is a composite cable solution in the Starlink system that integrates three core functions: power transmission, data transmission, and signal enhancement. It is mainly divided into two categories: standard three-in-one and Mini dedicated three-in-one, and is suitable for different terminal types and application scenarios. The core advantages lie in reducing connection points, enhancing stability and simplifying the installation process.
I. Core Definitions and Classifications
1.1 Gen 3 All-in-One Standard Cable (GEN 3 All-in-One Standard Cable)
Designed specifically for the third-generation Standard Starlink terminal (Standard V3/REV4), it adopts RJ45 interface + proprietary PoE protocol, and simultaneously realizes three major functions:
48V/65W power transmission (PoE protocol)
2.5Gbps high-speed data transmission (Cat6 standard)
Multi-layer shielded signal enhancement (anti-interference design)
1.2 Gen 3 All-in-One Mini Cable for Mini
Designed specifically for Starlink Mini terminals, it adopts a DC5521+Type-C composite interface. The functional combination is:
20V/100W DC power transmission (PD protocol or pure DC)
Built-in Wi-Fi 6 signal amplifier (for enhanced coverage)
Interface adaptive conversion (compatible with both DC-DC and DC-TYC power supply modes)
Ii. Technical Specifications and Core Parameters
Cable type, interface configuration, power supply protocol, data rate, wire gauge design, standard length, waterproof grade, applicable terminal
Standard three-in-one two-end RJ45 (8P8C), dedicated 48V PoE (65W), 2.5Gbps (Cat6), 26AWG (≤15m) /24AWG (>15m), 15m/30m/45m, IP68, third-generation standard terminal (V3/REV4)

Mini Three-in-one DC5521+Type-C composite head PD protocol (20V/5A) or pure DC without data channel (Wi-Fi independent transmission) 18AWG thickened copper core 5m/10m/15m IP67 Starlink Mini
Iii. In-depth Analysis of Working Principle
3.1 Standard three-generation three-in-one cable workflow
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Starlink Terminal (phased array antenna) ←RJ45→ Three-in-one cable (26AWG/ multi-layer shielded) ←RJ45→ Power adapter/third-generation router
↓ ↓ ↓
48V power input + data transmission and reception, parallel power and data transmission + signal enhancement, 48V power conversion +2.5Gbps data exchange
Key technical details
PoE power supply mechanism
The 48V power is transmitted through twisted-pair 1-2/3-6 wires, providing a stable power of 65W
It is equipped with an intelligent power management chip that automatically negotiates the power required by the terminal
Triple protection against overcurrent, overvoltage and short circuit to prevent equipment damage
Principle of Data Transmission
The remaining 4-5/7-8 pairs transmit 2.5Gbps data, meeting the peak download requirement of 475Mbps for Starlink
Supports automatic rate negotiation and is compatible with different router devices
Multi-layer metal shielding + CMX outdoor sheath reduces electromagnetic interference and enhances signal stability
Signal enhancement mechanism
It is equipped with an internal signal amplification module to enhance the data transmission distance and anti-interference capability
The grounding design of the shielding layer effectively reduces the influence of external electromagnetic radiation
3.2 Workflow of Mini Dedicated Three-in-One Cable (PD Protocol Mode)
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PD power supply (USB-C interface) → Type-C composite head → 18AWG copper core → DC5521 composite head → Mini Starlink terminal
↓ ↓ ↓
PD protocol handshake +20V output power transmission + signal amplification interface conversion + voltage compensation 20V stable power input +Wi-Fi signal enhancement
Core work characteristics
PD protocol adaptation
Automatically identify the power supply type and stably adjust the output voltage to 20V (as required by the Mini terminal)
Supports a 20,000mah PD power bank, meeting the needs for 72 hours or more of outdoor use
Compatible with dual power supply modes
The switch can be set to PD mode (compatible with portable power supplies) or pure DC mode (compatible with on-board/off-grid power supplies).
It is equipped with an internal boost module (12V→30V) to compensate for long-distance line losses and ensure that the terminal voltage is ≥20V
The principle of Wi-Fi signal enhancement
The built-in Wi-Fi 6 signal amplifier expands the coverage area of the Mini terminal to over 300 square meters
Supports Mesh networking expansion, suitable for multi-room/outdoor scenarios