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This User Manual covers setup, port configuration, adapter changes, and power distribution for the Satechi 145W USB-C 4-Port GaN Travel Charger (ST-W145GTM).

What's In The Box

• 145W USB-C 4-Port GaN Travel Charger (ST-W145GTM)
• International adapter set: US, EU, UK, AU
• User Manual

Product Overview

The Satechi 145W USB-C 4-Port GaN Travel Charger uses GaN (Gallium Nitride) technology to deliver up to 145W total across four USB-C PD ports in a compact travel-friendly design (75 x 135mm). Interchangeable US, EU, UK, and AU outlet adapters snap on and off, making it easy to charge anywhere in the world.

Functions

• Plug Adapter
• Adapter Release/Lock
• 4x USB-C PD Charging Ports
• LED Light

Setup

Step 1: Plug the charger into a power outlet using the appropriate adapter (US, EU, UK, or AU).

Step 2: Connect your devices using USB-C charging cables (sold separately) - charging begins automatically.

Changing the Outlet Adapter

Step 1: Pull the adapter lock back to release the current adapter. The current adapter will come off upwards.

Step 2: Insert the adapter you need to use until it clicks into place.

Power Distribution

The 145W USB-C 4-Port GaN Travel Charger delivers up to 145W total, shared dynamically across all four USB-C PD ports depending on how many are in use at once.

Single Port Output

• PD1: 140W Max
• PD2: 140W Max
• PD3: 45W Max
• PD4: 45W Max

Two Ports in Use (Up to 145W Max)

• PD1 + PD2: 65W + 65W
• PD1 + PD3: 100W + 45W
• PD1 + PD4: 100W + 45W
• PD2 + PD3: 100W + 45W
• PD2 + PD4: 100W + 45W
• PD3 + PD4: 25W + 20W

Three Ports in Use (Up to 145W Max)

• PD1 + PD2 + PD3: 65W + 30W + 45W
• PD1 + PD2 + PD4: 65W + 30W + 45W
• PD1 + PD3 + PD4: 100W + 25W + 20W
• PD2 + PD3 + PD4: 100W + 25W + 20W

Four Ports in Use (Up to 140W Max)

• PD1 + PD2 + PD3 + PD4: 65W + 30W + 25W + 20W

Note: PD1 and PD2 only output 140W when a single device is connected to that port at a time. When all four ports are in use, always connect the device with the highest power requirement to PD1.

Charging Tips

• Use an original or certified USB-C cable for the fastest and safest charge.
• For maximum single-device charging speed, use PD1 or PD2 alone (up to 140W).
• When charging multiple devices, connect your highest-power device (such as a laptop) to PD1 first.

Safety

• Keep away from water and other liquids.
• For indoor use only.
• Operating temperature: 32°F-104°F (0°C-40°C).
• Do not disassemble or attempt to repair the charger.
• Keep out of reach of children.
• Unplug from the wall when not in use for extended periods.