| Model Number | Description |
| MN25208A | 2-port USB SmartCal Module, 300 kHz to 8.5 GHz (available with connector options: -001 N(f), -002 K(f), -003 3.5 mm(f), -004 SMA(f)) |
| MN25408A | 4-port USB SmartCal Module, 300 kHz to 8.5 GHz (available with N(f) connectors) |
| MN25218A | 2-port USB SmartCal Module, 1 MHz to 20 GHz (available with K(f) connectors) |
| MN25418A | 4-port USB SmartCal Module, 300 kHz to 20 GHz (available with K(f) connectors) |
| 36585K-2M | K Precision AutoCal Module, 70 kHz to 40 GHz, K(m) to K(m) |
| 36585K-2F | K Precision AutoCal Module, 70 kHz to 40 GHz, K(f) to K(f) |
| 36585K-2MF | K Precision AutoCal Module, 70 kHz to 40 GHz, K(m) to K(f) |
| 2000-1809-R | Serial to USB Adapter (required for 36585 AutoCal module if control PC does not have a serial port) |
