3M tape then.
This is the underside of the hd's I plan on using(Travelstar 7K1000).
They only weigh 115gr but I'm reluctant in taping any sort of adhesive there that might screw them up. With an ssd I really wouldn't have that problem.
Wondering how Necere secured does two ssd in the front.
Would velcro be too thick and prevent the front panel from closing?