- One Port DB9: USA-19HS
- Two Port Din8: USA-28XG
- Four Port: USA-49WG
- Other: UPR-112G
- Twin Serial Adapter (p/n's: USA-28X, USA-28XA and USA-28XB)
- PDA Adapter (p/n's: USA-19 and USA-19Qi)
- High Speed Serial Adapter (p/n's: USA-19W and USA-19QW)
- Serial Adapter (p/n USA-18X)
- USB Serial Adapter (p/n USA-28)
- 4-port Serial Adapter (p/n's: USA-49W, USA-49WLC and USA-4E230)
- Serial port in Mini Port Replicator
- adds 10.6 compatibility (32bit and 64bit). Note: Version 2.6 is only compatible with Mac OS X 10.6 (aka Snow Leopard). It is NOT compatible with older versions of Mac OS X (10.5 or older).
- Mac OS X 10.6 or later
- Keyspan USB adapter.
*Previously available here