Bulk ethernet cable comes in several varieties, but there are 2 basic categories: solid and braided stranded cable. Stranded ethernet cable tends to work better in patch applications for desktop use. It is more flexible and resilient than solid ethernet cable and easier to work with, but it is intended to be ran shorter distances. Solid ethernet cable is meant for longer runs in a fixed position. Plenum rated ethernet cable must be used whenever the cable travels through an air circulation space, for example, above a false ceiling or below a raised floor.