SA2MH080G2K5 = 9.5mm 2.5" drive, 3.5" adapter bracket, screws, SATA signal and power cables, installation guide, and warranty documentation.
I believe the SA2MH080G2R5 might be drive only.
The drives themselves are exactly the same.
From what I can work out the SSDSA2MH080G2R5 is a cut down retail box of the SSDSA2MH080G2K5 where you get the following:
Includes installation kit that contains: 3.5" desktop drive bay adapter to 2.5" SSD adapter bracket, screws, installation guide, and warranty documentation
for SSDSA2MH080G2K5 you get as above but with:
SATA data cable, power cable and a speed demon sticker.
Since the K5 and R5 appear the same I could put my 2 K5's and My 1 R5 together in a RAID 0 and it would be fine? All mine are new retail and the boxes packing and drives with adapters appear the same. Thanks Steve
Since the K5 and R5 appear the same I could put my 2 K5's and My 1 R5 together in a RAID 0 and it would be fine?
Yes but I would get the Firmware Up to date before you do.