| B1 | Bias Tees |
| B10 | GPIB interface |
| B22 | Extended power range down to -80dBm, for R&S®ZNB8 2-port (retrofittable in factory |
| B31 | Receiver step attenuator port 1, electronical, 30dB in 10dB steps, for R&S®ZNB8 |
| B32 | Receiver step attenuator port 2, electronical, 30dB in 10dB steps, for R&S®ZNB8 |
| B4 | OCXO-Precision Frequency Reference |
| B81 | DC Inputs |
| DCV-2 | Documentation of calibration values |
| DCV-ZP | Printout of DCV (additional, in combination with DCV-Option only) |
| K17 | 10MHz receiver bandwidth (software license) |
| K17 | 10MHz receiver bandwidth (unregistered license) |
| K17 | 10MHz receiver bandwidth (timed license, 1 month) |
| K17 | 10MHz receiver bandwidth (timed license, 12 months) |
| K17 | 10MHz receiver bandwidth (timed license, 3 months) |
| K17 | 10MHz receiver bandwidth (timed license, 6 months) |
| K2 | Time domain analysis (unregistered license) |
| K2 | Time domain analysis (portable license) |
| K2 | Time domain analysis (timed license, 1 month) |
| K2 | Time domain analysis (timed license, 12 months) |
| K2 | Time domain analysis (timed license, 3 months) |
| K2 | Time domain analysis (timed license, 6 months) |
| K2 | Time domain analysis (software license) |