“These short cables are very useful for when you have a microSD card on a PC board inside a plastic project box and users need to be able to swap cards without the faff of unscrewing the lid of the case. Not many firms stock cables as short as this and of those that do, some want you pay silly money. So get them here!”
“These don't take well to being fitted into enclosed spaces / tight fit, as the part that goes into the SD card slot on the Pi doesn't take well to being bent, even in the slightest”