Mobile device charger Satechi ST-W145GTM 4 USB Type-C fast charging

The Satechi 145W USB-C 4-Port GaN Travel Charger (ST-W145GTM) is a compact indoor mobile device charger with four USB-C Power Delivery ports that supports simultaneous fast charging for multiple devices. The charger uses GaN technology and an internal graphene insulator to deliver high efficiency in a lightweight silver housing. It includes four interchangeable international adapters (EU/AU/UK/US) and a mesh carrying bag for travel convenience.

Advantages

The charger delivers up to 145 W total output with smart power distribution across four USB-C PD ports. PD1 and PD2 use Power Delivery 3.1 and can provide up to 140 W to a single port, while PD3 and PD4 support Power Delivery 3.0 and offer up to 45 W when used individually. GaN technology with graphene insulation reduces size and heat transfer to the exterior, making the unit compact and efficient. The package includes interchangeable adapters for international use and a mesh bag for storage.

Suitable for

• Charging laptops (via USB-C PD 3.1 up to 140 W on a single port)
• Charging tablets and large smartphones simultaneously
• Powering multiple USB-C accessories while travelling
• Use at home or in the office where multiple devices need fast charging

Key specifications

• Maximum power: 145 W (total)
• Ports: 4 × USB-C PD (PD1 & PD2: PD 3.1, PD3 & PD4: PD 3.0)
• Single-port max (PD1/PD2): up to 140 W
• Single-port max (PD3/PD4): up to 45 W
• Technology: GaN with graphene internal insulator
• Charger type: Indoor, AC powered
• Compatibility: Universal USB-C devices
• Colour: Silver
• Weight: 0.346 kg

How to use

Connect the charger to an AC outlet using the appropriate interchangeable adapter for your region. Plug USB-C cables into the device ports and then into your devices. The charger will automatically distribute power according to the connected devices and ports; for highest single-port power, use PD1 or PD2. Ensure cables and device ports support the required Power Delivery profiles to achieve maximum output.

Recommendations

Use certified USB-C PD cables and connect high-power devices to PD1 or PD2 to obtain the maximum single-port output. Avoid covering the charger during heavy use to allow heat dissipation. Store the interchangeable adapters in the provided mesh bag when travelling.