Cabletron Systems SmartStack Interface Modules
| Manufacturer Part Number | Description | |
| EPIM100-2F4 | 1 MMF & 1 SMF Ethernet Port Interface Module |  |
| SSIM-A2-01 | 1 Port ATM155 SmartStack Uplink, RJ-45, UTP5 | |
| SSIM-H2-02 | 2 Port 10/100 SmartStack Translation Bridge | |
| SSIM-R8-02 | 2 Port High Speed Token Ring SmartStack Interface Module, MMF, VF-45 | |
| SSIM-R2-02 | 2 Port High Speed Token Ring SmartStack Interface Module, UTP5, RJ45 | |
| EPIM100-2F2 | 2 Port MMF Ethernet Port Interface Module | |
| EPIM100-2F3 | 2 Port SMF Ethernet Port Interface Module | |
| SSIM-T5-04 | 20 Fixed Token Ring SmartStack Interface Module, UTP/STP | |
| SSIM-T8-04 | 4 Port Fiber Token Ring SmartStack Interface Module | |