N4432A 电子校准件，300 kHz 到 18 GHz，4 端口
| N4432A-020 | Four type-N 50 ohm female connectors |
| N4432A-101 | Port A connector is 3.5 mm female |
| N4432A-102 | Port A connector is 3.5 mm male |
| N4432A-103 | Port A connector is type-N 50 ohm female |
| N4432A-104 | Port A connector is type-N 50 ohm male |
| N4432A-150 | Wooden storage box |
| N4432A-1A7 | Calibration + Uncertainties + Guardbanding (Not Accredited) |
| N4432A-201 | Port B connector is 3.5 mm female |
| N4432A-202 | Port B connector is 3.5 mm male |
| N4432A-203 | Port B connector is type-N 50 ohm female |
| N4432A-204 | Port B connector is type-N 50 ohm male |
| N4432A-301 | Port C connector is 3.5 mm female |
| N4432A-302 | Port C connector is 3.5 mm male |
| N4432A-303 | Port C connector is type-N 50 ohm female |
| N4432A-304 | Port C connector is type-N 50 ohm male |
| N4432A-401 | Port D connector is 3.5 mm female |
| N4432A-402 | Port D connector is 3.5 mm male |
| N4432A-403 | Port D connector is type-N 50 ohm female |
| N4432A-404 | Port D connector is type-N 50 ohm male |
| N4432A-A6J | ANSI Z540-1-1994 Calibration |
| N4432A-ABA | Printed manual English |
| N4432A-UK6 | Commercial calibration certificate with test data |
