A threaded locking dc pigtail for equipment that vibrates: a 5.5x2.1mm right-angle plug with a knurled threaded collar, shielded cable with a drain wire, and tinned tails. The collar screws onto a matching socket, so retention no longer depends on friction. 2.00 m standard, with the cable exit clocked to your run.

A dc 5521 right angle cable takes a USB-C PD source to a 5.5 x 2.1 mm barrel device, with an L-shaped plug that sits flush behind monitors, mini-PCs and rack gear. Center positive, custom length.