How many power outlet do you need and are they for USB charge?
I always bring this one to charge my USB devices : https://www.amazon.com/Anker-6-Port-Charger-PowerPort-Samsung/dp/B00P936188/
Or you can find something with both power outlet and usb charge:
https://www.amazon.com/Upow-3-Port-Travel-Charger-Outlets/dp/B01GY3B834/
Get one of these from Anker. It's smart about the output so it won't overpower a device. Just get one of these and then it's available for other things you might need to plug in too.
Also, they're INCREDIBLE for travel. Leave your plugs at home and just bring cables.