Keyspan USB Twin serial Adapter interface cards/adapter

USB Twin serial Adapter There's a good reason why we sell more Mac USB serial adapters than any other company. Our years of experience in making PCI serial cards for Macintosh make us much more knowledgeable about Macintosh serial technology.

We applied this expertise to produced the first USB serial adapter for Mac OS in October 1998. As Apple released Mac OS X, we added Mac OS X drivers for the Twin Serial Adapter.

This adapter is recommended by dozens of serial devices manufacturers and this adapter has been certified by Apple for use with Final Cut Pro (to connect to external video decks).

Features:
- Plugs into any USB port
- Provides two RS-422 mini-DIN8 ports
- Supports data rates up to 1 Mbps
- Draws its power from the USB connection -- a power adapter is not required
- Emulates the printer port on one port