HTC Vive VR Short 1m 3' 3 foot 3in1 3 in 1 3-in-1 Backpack Developer Cable
(This is a 3-in-1 cable for the original first-generation (circa 2015) HTC Vive, to connect the headset to the link box. I've included a photo of the part number. I'm replacing it with a longer cable because I want to play Beat Saber:).