 Longer is usually better. For GPUs, that usually means a bigger cooling components. Better cooling means better speeds. But longer also means sag. That means the weight of the card might cause it to bend or in extreme cases, even break off from the motherboard. To combat sag, you need support. It's not recommended just to put any old thing under your GPU. We tried out DeepCools ST500 and it is extremely easy to install and will keep any size GPU well supported. It slots into the back of your case just like any other card and then inside the case, there are two support points. The top GPU point and the bottom case point. Both points can be adjusted left and right, up and down. So whatever the size and dimensions of your GPU and case, you can customize the ST500 to support the GPU properly. Plus, the ST500 comes with ARGB lighting as well. Super easy to use and it'll save the back of your GPU without breaking the bank.