| Part number | Description |
|---|---|
| JX-1BRI-ST-S | 1 Port ISDN BRI – S/T Interface – Spare |
| SSG-100-MEM-512 | 512 MB DIMM memory upgrade for the SSG 100 series |
| SSG-140-SB | SSG 140 System, 256 MB memory, 0 PIM cards, AC power |
| SSG-140-SH | SSG 140 System, 512 MB memory, 0 PIM cards, AC power |
