The following adapters have been discontinued as of 2011.
| Card | Lines | Interface | Speed | Access | Chip | OS* | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
| Digi Sync/570i PCI |
 |
2 or 4 | RS-232 X.21 V.35 |
5 Mbps | 256K Dual Ported Memory |
Hitachi HD64570 | Windows Solaris Linux |
 |
| ACB-MP.PCI PCI |
 |
1 | RS-232 RS-485 EIA-530 V.35 |
128 Kbps | PIO | Zilog 85233 SCC | Windows Linux |
 |
| PC-ACB.MP PCMCIA |
 |
1 | RS-232 RS-422/485 V.35 |
128 Kbps | PIO | Zilog 85233 SCC | Windows | |
| SyncLink PCMCIA |
 |
1 | RS-232 RS-422 V.35 |
1 Mbps | PIO | Siemens SAB82532 | Windows |  |
| ACB-104 PC/104 |
 |
1 | RS-232 RS-422/485 EIA-530 |
1Mbps | PIO | Zilog 85230 SCC | Windows Linux |
|
* Please check with our sales department for versions and/or distributions supported.