This is the SN850X you buy when you want it to just work in a PS5 or in a build with no spare M.2 cooler. The drive itself is identical to the bare version, same 7,300 MB/s read, same 6,600 MB/s write, same 2GB DRAM cache, so performance is top of the class.
What you are paying extra for is the bundled heatsink, which is correctly sized for the PS5's storage bay and keeps the controller from throttling during long sessions.
If your motherboard already includes an M.2 heatsink, this version is redundant and the bare model is the better deal. But for a PS5 it is the cleanest option going: open the bay, drop it in, done.