It is connected with a USB cable, no second cable required. The connection is USB 2.0 (USB-A), compatible with USB 3.0 ports, and supplies data and power.
Hello, the USB external DVD-RW drive requires a connection to a computer via USB 2.0 to work. Video projectors generally don't have USB ports compatible with external optical drives, so you have to use a computer to play back films [^1^].
[^1^]: The information available indicates that these external drives connect exclusively to computers via USB (HP F2B56AA and similar models in the results). No mention of direct compatibility with projectors.
The external USB DVD-RW drive supports DVD+R, but support for DVD-R is not explicitly stated. It is likely that it can read both DVD-R and DVD+R as many modern drives support both formats. However, there is no clear confirmation of DVD-R support in the information provided. It would be advisable to consult the official product description or the manufacturer to ensure that it supports both formats.
It can actually do both. The manufacturer states the following:
For your mobile computing world: conveniently back up and store media in a compact plug-and-play accessory. Play from or record to CDs and DVDs.
Save time with double the burning speed of the dual-layer recording function. Quickly write, erase and rewrite discs at speeds of up to 8X DVD and 24X CD.
Hoi and yes, it should work - but I don't know (haven't read anywhere) which region code(s) it supports.
You may need a DVD viewing tool (e.g. VLC).
LG
If Surface Pro 7 runs under Windows 10, I see no reason why DVD with USB 2.0 port will not run. Mine ran with Intel desktop and Windows 10 64 bit without a problem. By the way, it is also an inexpensive matter (CHF 35.-).