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Instruction Manual — 108W Pro USB-C PD Desktop Charger

This manual covers setup and features for the Satechi 108W Pro USB-C PD Desktop Charger (Model: ST-TC108WM).

📄 Download User Manual — 108W Pro USB-C PD Desktop Charger · PDF · 860 KB

In the Box

108W Pro USB-C PD Desktop Charger, Power Cable, User Manual.

Specifications

Model: ST-TC108WM
Total Max Output: 108W
Connector: 2-Pin power connector (plugs directly into wall outlet)

Ports & Power:
1× USB-C PD (Port 4, 90W Max) — (PD) 5V/9V/12V/15V → 3A, 20V → 4.5A; (QC3.0) 3.6V–6V → 3A, 6V–9V → 2A, 9V–12V → 1.5A
1× USB-C PD (Port 5, 18W Max) — (PD) 5V → 3A, 9V → 2A, 12V → 1.5A, 15V → 1.2A; (QC3.0) 3.6V–6V → 3A, 6V–9V → 2A, 9V–12V → 1.5A
2× USB-A (Port 6, Total 12W Max) — shared output across both USB-A ports

Parts Reference

1. 2-Pin Power Connector — The 2-pin connector on the back of the charger that plugs into a standard wall outlet.
2. Power Cable (included) — The power cable included in the box. Connects to the 2-pin connector.
3. LED Indicator — Lights up to indicate the charger is powered and in use.
4. USB-C PD Charging Port (90W Max.) — High-power USB-C PD port for charging laptops and tablets. Supports Power Delivery (PD) and Quick Charge 3.0 (QC3.0). Maximum output: 90W. (PD) 5V/9V/12V/15V → 3A, 20V → 4.5A; (QC3.0) 3.6V–6V → 3A, 6V–9V → 2A, 9V–12V → 1.5A.
5. USB-C PD Charging Port (18W Max.) — Second USB-C PD port for charging smartphones and tablets. Supports Power Delivery (PD) and Quick Charge 3.0 (QC3.0). Maximum output: 18W. (PD) 5V → 3A, 9V → 2A, 12V → 1.5A, 15V → 1.2A; (QC3.0) 3.6V–6V → 3A, 6V–9V → 2A, 9V–12V → 1.5A.
6. 2× USB-A Charging Ports (Total 12W Max.) — Two USB-A ports for charging additional devices. Combined maximum output is 12W across both ports.

Setup

The 108W Pro USB-C PD Desktop Charger is plug-and-play — no drivers required.

Step 1: Connect the power cable to the 2-pin connector on the back of the charger.
Step 2: Plug the charger into a wall outlet. The LED indicator will light up.
Step 3: Connect your devices to the USB-C or USB-A ports.

Recommended usage:
Connect a USB-C laptop or tablet to Port 4 (90W) for maximum charging speed.
Connect a USB-C smartphone or tablet to Port 5 (18W).
Connect additional devices to the USB-A ports (Port 6).

Important Notes

Use the original device cable or a certified cable: For the fastest and safest charge, use the cable that came with your device or a certified third-party cable. Non-certified cables may reduce charging speed or cause issues.

Keep away from water, liquid, and moisture: Do not use the charger near water or in humid environments.

Total max output is 108W: When multiple ports are used simultaneously, total output is shared across all ports. The 90W USB-C port may deliver reduced power when other ports are in use at the same time.

Frequently Asked Questions

What is the maximum charging wattage for USB-C?
Port 4 delivers up to 90W via USB-C Power Delivery. Port 5 delivers up to 18W. Total combined USB-C output is 108W.

Does this charger support Quick Charge 3.0?
Yes. Both USB-C ports support Quick Charge 3.0 (QC3.0) in addition to USB-C Power Delivery (PD).

Can I charge a MacBook Pro with this charger?
Yes. Connect your MacBook Pro to Port 4 (90W USB-C PD) using a USB-C cable. The 90W port is compatible with most USB-C laptops.

Can I use all ports simultaneously?
Yes. All ports can be used at the same time. When multiple ports are in use, total output (108W) is shared across the connected devices.

What does the LED indicator mean?
The LED indicator lights up when the charger is connected to power and operating normally.

Safety Instructions

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

1. Keep away from water, liquids, and moisture.
2. Do not expose to extreme heat or direct sunlight for extended periods.
3. Do not drop or subject to strong impacts.
4. Do not cover or block ventilation while in use.
5. Use only with a compatible power outlet.

Need Help?

Contact Satechi Support at support.satechi.com or email support@satechi.com.
Phone: +1 858 268 1800 | Website: www.satechi.com