That power strip is just a power strip, and does not contain any magical voltage conversion tech (except USB, of course). This is easily confirmed by contemplating: "how does it know which voltage I want?" You get the same voltage out as in, and it simply exists as a means to physically connect loads which already accept the voltage it's plugged into.
So how to work with international power?
Your first strategy should be "do not haul electrical equipment across oceans". It takes several times the item's weight in CO2, and they have hair dryers in France. Honest.
For extraordinarily valuable equipment, like computers and electronics, grab a magnifying glass and look closely at the nameplate on the device or its power supply. I bet it says something like 100-240V or 90-264V... this is typical of switching power supplies that are able to accept any voltage in that range. These do not need voltage conversion - don't bother.
Of what remains, it generally falls into two categories: very low power things like toothbrushes, and very high power things like hair dryers. These require different strategies.
For the low power items (under 25 watts), the best bet is an actual, literal transformer, as this will be sanely priced. These will be fixed voltage. Get one that has your destination country's plug and your country's socket, and is approved by local standards bodies. (CE is unreliable by mail).
For high power resistance heat appliance like coffee makers didn't I say don't bring those? they make inexpensive electronic chopper converters that use triacs to chop up the 230V sine-wave - it's not great, but it will work with a resistive heat appliance.
If the above don't fit, your last resort is a large, costly and very heavy large transformer. However this will be the wrong frequency, and loads that depend on AC frequency to run at the correct speed will not like it. (Record turntable, motor, clock etc.) Carrying one of those in baggage is even more wasteful than hauling the appliance itself. Just buy or rent an equivalent appliance domestically when you arrive.
Well if frequency is critical, the "Hail Mary" play is an online double-conversion UPS, but we're really over the moon on cost and weight at this point.