Litake Mini Travel Power Adapter with QC 3.0 USB Charger: $23.99 (lowest price ever, excellent reviews) Posted November 7, 2018 Why would we need to spend more than $20 on a travel adapter when $10-$15 versions are readily available? How is this even a deal? QC 3.0 USB charging. That’s why. AtoZwire.com may get a commission.