GDSTime 1238 Fan connectors

Bought a couple of GDSTime 1238 fan sets. The ones I got were in a 1x3 array. They are more stable sitting on edge than the narrower versions but if the power wire is underneath they tend to fall over. I also wanted to place them on top of each other (2x3 array) but they become even more unstable. I printed a couple of small retainers and feet stands that allow me to place them on a window ledge and be a little more stable. Since the parts just slide in place it makes them a little easier to put together and pull apart than using screws to fasten them. However this also means they are not fastened together as securely.

The GDSTime fans have 2 round screw connectors and 2 slots on each fan which are a little different than all the other fans I have. I have included an image and a STL model of the fan casing for reference.