Questions about Samsung Duo Plus

The two should be identical. The cheaper product has the manufacturer's name " MUF-256DB/APC" and is probably intended for the "Asia Pacific" region. I assume Digitec imports these and can therefore sell them at better conditions. The more expensive version "MUF-256DB/EU" is probably intended for the European market and is therefore more expensive. According to Digitec, the APC version has a write rate of 30MB/s and the EU version a write rate of 80MB/s. I doubt that this is true. I doubt that this is correct. Samsung itself only writes: "Up to 300MB/s read speed for USB 3.1, write speed is lower than read speed. *Actual speed may vary by host device and actual usage conditions." EU: https://www.samsung.com/uk/memory-storage/usb-flash-drive/usb-3-1-flash-drive-duo-plus-256gb-black-muf-256db-eu/ APC: https://www.samsung.com/my/memory-storage/usb-flash-drive/duo-plus-usb-type-c-flash-drive-256gb-black-muf-256db-apc/ *** All data without guarantee ***

Yes

Any USB stick available should work with a Mac. As you wrote yourself, it depends on the correct formatting. If you use FAT or exFAT, the stick should even be usable on the Mac and the Samsung phone at the same time. https://www.macwelt.de/tipps/USB-Stick-am-Mac-formatieren-So-geht-s-5789509.html

The manufacturer does not seem to give any information on this. I assume, however, that this should be possible. If not, you should be able to return the item if necessary.

Yes for all samsung with usb c connector