KEYSPAN USA19HS -- Would it solve a logistical [problem on your desktop if you could connect serial devices to a USB port on your PC? The KEYSPAN USA19HS is the simple, inexpensive and reliable way to do exactly that! OS Compatibility - Windows 98SE, ME, 2000, XP Mac OS 8.6+, OS X 10.1.3+, Linux 2.4.18+, Windows CE 3.0+ Host device must feature a USB port