Very competitive when compared against the 970 EVO, and still usable in a PCIE 3.0 bus (though that impacts its read speeds). It's not going to have high-end PCIE 4.0 performance due to the lack of a heatsink, but it's solid.
The mouse is the RGB variant of the CoolerMaster MM710 mouse in matte black, and they are probably the #1 gaming mouse recommendation right now if you're after a smaller mouse. Trypophobians be advised that its honeycomb design may not be to your liking.
I'd value the mouse around $50, so if you have a need for both, this is a good deal. The related Seagate promotion runs until March 29.
There are other models available in this promotion, but the value proposition is only really there for the FireCuda 520 at this storage class.
Enjoy!
Pretty sweet deal - nice to see one without the heatsink actually, my X570 board has a built in heatsink/fan.