Meritline offers this 4-Port USB Charger Adapter for Mobile Devices
with free shipping
. That's tied with our January mention and the lowest total price we could find by $2. It works with most electronics that use a USB charging cable. Expect this item to take two to three weeks to arrive.
Have Prime? Amazon offers the SCOSCHE reVIVE IV 4-Port USB Charger for $5.56 with free shipping via Prime.