Samsung Electronics GmbH
Hello,
Thank you for your enquiry.
The Samsung SSD 870 EVO SATA III 2.5 inch - 1 TB MZ-77E1T0B/EU has the following product features:
Form factor: 2.5 inch
Connectors: SATA 6 Gb/s interface, compatible with SATA 3 Gb/s & SATA 1.5 Gb/s interface
Dimensions: 100 X 69.85 X 6.8 mm (W x H x D)
Please check whether your Asus motherboard CM6870 fulfils the necessary requirements. If in doubt, please contact the device manufacturer.
Best regards from Eschborn
Your Samsung Service Team

Yes, certainly no known restrictions. Unless you are using a very old SATa cable which does not have a clip, problems can occur, as can of course if you have kinked the cables even if they are new.
It is important that these SSd's are placed in a draught to prevent heat death.

Yes, no problem.