Types: 1) For 8 bits, unshielded, hard wire, Cat5e, production code: 2000 2) For 8 bits, unshielded, hard wire, Cat5, production code: 2001 3) For 8 bits, unshielded, Cat6, production code: 2006 Features: 1) Using a small wire pipeline, convenient for wires end joint with plug 2) Pipeline is used to make sure thrum's length is not bigger than half inch of line's twist space 3) Suitable for both locale end joint and batch production in the factory 4) Faster and easier for end joint Packing: 100pcs/box