Tessan GaN Universal Travel Adapter with USB-C (GM-636) review

Tessan is one of the most widely sold travel-adapter brands, and the GM-636 is its mainstream GaN model. It pairs a universal AC outlet with two USB-A and three USB-C ports, so six devices can charge at once, and the 100W version is rated for laptop charging; Tessan says it can take a phone to 65% in 30 minutes. The vendor lists coverage for more than 200 countries and regions and describes double fuse protection, safety shutters and dynamic temperature control. A 65W version is sold on the same page for people with lighter laptops. What holds it back here is documentation and price. The product page does not publish per-port wattage or weight, so it is harder to plan which device goes where than with Ceptics or Chargeasap, and the white 100W version was $67.99 when we checked, $23 more than the Ceptics 100W adapter with its built-in cable.

Who it is for

Travelers who want six charging points in a pocket-sized adapter from a large travel-accessory brand.

Price

$67.99 for the white 100W version at Tessan's store when checked.

tessan gan universal travel adapter with usb-c-white sale price $67.99
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Universal AC outlet plus 2 USB-A and 3 USB-C ports
• GaN fast charging up to 100W on the 100W version
• Charges six devices at once
• Covers 200+ countries and regions
• Double fuse protection, safety shutters and temperature control

Strengths and weaknesses

• Strength: Six charging points in a compact body
• Strength: Choice of 65W or 100W versions
• Strength: Tessan lists safety shutters and double fuses
• Weakness: Tessan publishes no per-port breakdown on the product page
• Weakness: Costs more than the Ceptics 100W with fewer documented specs
• Weakness: Only one AC outlet

Key facts

• Max USB output: Up to 100W (100W version)
• Ports: 2 USB-A, 3 USB-C
• AC outlets: 1 universal
• Coverage: 200+ countries and regions
• Versions: 65W and 100W

Where it ranks

Tessan GaN Universal Travel Adapter with USB-C (GM-636) is No. 5 in our Best Travel Adapters verdict.