You can clone your HDD to your SSD on a different computer, but a fresh install is always best. Since you wouldn't be swapping motherboards your key should be good.
The Adata is worse than getting the Samsung. I said get one of the others because the 840 is slightly slower than the pack but still better quality than getting an Adata SSD.
The Adata is worse than getting the Samsung. I said get one of the others because the 840 is slightly slower than the pack but still better quality than getting an Adata SSD.