The Agilent 11857D includes two precision 61 cm (24 in) cables, phase matched to 2 degrees at 1.3 GHz for use with the Agilent 8753D/E, Agilent 85046A or Agilent 85047A S-parameter test sets. Connectors are 50 ohm APC-7. Option B24 deletes phase requirement between cables in the set.