This part is listed by BMW as BMW part number 51248492174 (51-24-8-492-174) and is described as Genuine BMW Trunk Shock for G42 2-Series & G87 M2.
This is a Genuine BMW gas pressurized spring with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.
BMW Fitments:
2 Series
G42 / G43 (2022+) > 230i
G42 / G43 (2022+) > 230i xDrive
G42 / G43 (2022+) > M240i
G42 / G43 (2022+) > M240i xDrive
2 Series
G87 (2023-) > M2 (2023+)
