Note that 5 cm is the length of free cable. It's 10 cm from jack to jack with cable fully extended.
This said it isn't very flexible, it is relatively hard to push the two connectors back to back (for minimum distance between pedals). Not sure how long this cable would last if forced in that position on a pedalboard. The EBS PCF-DL10 (10 cm cable, 14 cm jack-jack) is easier to bend - at double the cost.