IBM/Lenovo make a USB adapter with one conventional serial and one conventional parallel port attached to it, but the list it as compatible only through XP--not Vista. Mainly to support legacy printers, and a legacy serial GPS--and boat instruments that still use the serial bus.
Originally retailed for $79.99Ibm Usb Serial Parallel Adapter 22p9036
This is in like new perfect working condition and IT IS NOT a refurbished unit!!!
PN 22P9035
FRU 22P9036
Ibm Usb Serial Parallel Adapter 22p9035 Driver Windows 7
The USB Serial Parallel Adapter enables you to connect one serial device and one parallel printer via your ThinkPad system's USB port. It does not require an additional power source. The adapter is lightweight and comes in ThinkPad black.This highly portable adapter will be especially appealing to the mobile X-series customers needing to connect to PDAs and printers while on the go.
One serial port
One parallel printer port
You can find more information on the IBM website including current drivers, it is easy to install and is compatible with most systems.
http://www-307.ibm.com/pc/support/site. ... 39488.html