View Product Page

This User Manual covers all features, setup, specifications, and troubleshooting for the Satechi USB4 Pro Cable - 1.2M (ST-YU4120M).

In the Box

USB4™ Pro Cable - 1.2M, User Manual.

Specifications

Model: ST-YU4120M
Length: 1.2 meters
Connector Type: USB-C to USB-C
Data Transfer Speed: Up to 40Gbps
Max Power Delivery: Up to 240W. Requires a host USB4 port that supports the Power Delivery 3.1 protocol.
Video Output: Up to 8K/60Hz on a single external monitor connection
Cable Body: Durable braided

Parts Reference

The cable’s components are numbered below to match the diagram.

Parts labeled diagram of the USB4 Pro Cable - 1.2M with 2 labeled components.

1. USB4 Connectors (40Gbps / 240W / 8K/60Hz) — USB-C connector at each end of the cable. One end connects to your host device (laptop, computer, or USB-C power source); the other connects to your peripheral, display, or device being charged.
2. Durable Braided Cable — The premium braided cable body, designed for durability and flexibility.

Setup

Step 1: Connect one end of the cable to your device (laptop, computer, or USB-C PD power adapter).
Step 2: Connect the other end to the peripheral, monitor, or device you want to power, charge, or transfer data to.
Step 3: If connecting to an external display, ensure your monitor's input is set to the correct HDMI or DisplayPort/Alt Mode source.

Important Notes

The USB4 port on the host device must support the Power Delivery 3.1 protocol to reach wattages up to 240W.

Video output is limited to 8K/60Hz on a single external monitor connection.

Safety Instructions

Warning: Fire, electric shock, or damage could occur if the following instructions are not obeyed.

1. Do not bend, kink, or pinch the cable sharply.
2. Keep away from liquids and moisture.
3. Do not use if the cable or connectors are damaged or frayed.
4. Do not force connectors — ensure correct alignment before inserting.

Certifications

FCC, CE, WEEE, CAN ICES-003(B)/NMB-003(B)