PCPartPicker can filter for card length (in millimeters as opposed to inches, but still) and that should help with narrowing down your choices. Most GPUs have some variant that’s shorter in length, but they might just charge a bit of a premium for it.
I don’t see a timer at the bottom of their website - instead I see this line of text:
That SampleinGC.png image is accessible, and is a picture of a vial in a testing chamber of some sort. The image also has metadata attached; a description that is a string of morse code:
translated: