| Option (At Purchase) | Upgrades (Post Purchase) | Applicable Models | Description | Upgrade Process |
|---|---|---|---|---|
| GPB | 3446GPBU ↑ | 34460/1/5A, 34470A | Add GPIB interface, user-installable | Customer installable hardware |
| SEC | 3446SECU ↑ | 34460/1/5A, 34470A | Enable NISPOM and file security | Software license |
| LAN | 3446LANU ↑ | 34460A | Enable LAN interface and external triggering | Software license |
| ACC | 3446ACCU ↑ | 34460A | Add 34138A accessory kit, includes test leads, USB cable | Accessory kit |
| MEM | 3446MEMU ↑ | 34465/70A | Enable 2 million readings memory | Software license |
| Z54 | n/a | 34460/1/5A, 34470A | Certificate of calibration: ANSI/NCSL Z540.3-2006 | Calibration certificate |
| R-50C-011-3 | All | 3 Year Calibration Plan | ||
| R-50C-011-5 | All | 5 Year Calibration Plan | ||
| R-51B-001-5Z | All | 5 Year Warranty Plan | ||