The Keysight 11854A accessory kit furnishes the RF components required for measurement of devices with 50 ohm, BNC connectors and when using a network analyzer with a type-N configuration. The BNC accessory kit contains two type-N male to BNC female adapters, two type-N male to BNC male adapters, two type-N female to BNC female adapters, two type-N female to BNC male adapters, a BNC male short, and a storage case.