The length should allow you to lay the cable with a small margin. The longer the cable, the more impact it can have on the sound.
Brand: Cayin
: 43
Conductor material: copper, silver
: 44
Connector (left): 4.4mm jack male
Braid material: PVC
Brand: Sonos
Cable length, m: 0.20
Cable length, m: 100
Brand: iFi
: 46
Conductor material: copper
: 32
Connector (left): RCA male, Toslink Mini