| 008 | Frequency offset mode |
| 010 | Time domain analysis |
| 017 | Removable hard disk drive |
| 019 | Standard hard disk drive |
| 1A7 | ISO 17025 compliant calibration |
| 1CM | Rack mount kit |
| 1CN | Front handle kit |
| 1CP | Rack mount and front handle kit |
| 1E5 | High stability timebase |
| 230 | 2-port Test Set, 9 kHz to 3 GHz without Bias Tees |
| 235 | 2-port Test Set, 100 kHz to 3 GHz with Bias Tees |
| 240 | 2-port Test Set, 9 kHz to 4.5 GHz without Bias Tees |
| 245 | 2-port Test Set, 100 kHz to 4.5 GHz with Bias Tees |
| 260 | 2-port Test Set, 9 kHz to 6.5 GHz without Bias Tees |
| 265 | 2-port Test Set, 100 kHz to 6.5 GHz with Bias Tees |
| 280 | 2-port Test Set, 9 kHz to 8.5 GHz without Bias Tees |
| 285 | 2-port Test Set, 100 kHz to 8.5 GHz with Bias Tees |
| 2D5 | 2-port Test Set, 300 kHz to 14 GHz with Bias Tees |
| 2K5 | 2-port Test Set, 300 kHz to 20 GHz with Bias Tees |
| 430 | 4-port Test Set, 9 kHz to 3 GHz without Bias Tees |
| 435 | 4-port Test Set, 100 kHz to 3 GHz with Bias Tees |
| 440 | 4-port Test Set, 9 kHz to 4.5 GHz without Bias Tees |
| 445 | 4-port Test Set, 100 kHz to 4.5 GHz with Bias Tees |
| 460 | 4-port Test Set, 9 kHz to 6.5 GHz without Bias Tees |
| 465 | 4-port Test Set, 100 kHz to 6.5 GHz with Bias Tees |
| 480 | 4-port Test Set, 9 kHz to 8.5 GHz without Bias Tees |
| 485 | 4-port Test Set, 100 kHz to 8.5 GHz with Bias Tees |
| 4D5 | 4-port Test Set, 300 kHz to 14 GHz with Bias Tees |
| 4K5 | 4-port Test Set, 300 kHz to 20 GHz with Bias Tees |
| 790 | Measurement wizard assistant software |
| 810 | Add keyboard |
| 820 | Add mouse |
| 903 | Power cord |
| A6J | ANSI Z540 compliant calibration |