The listing, Radio Shack Item # 26-115 - Shielded A/B Data Switch - Free US Shipping has ended.
Used but not heavily. Not my picture, I stole it from eBay, but it's the same item without the number labels.
This was not used heavily. I'm cleaning it up. It worked last time I was using it. Good design.
Free US shipping. Free International shipping after 500 or more credits, otherwise $5 International shipping. If you want me to send a parallel cable or two, just ask...
Description swiped of eBay:
"Radio Shack shielded A/B computer data switch # 26-115:
* Switch between 2 peripheral devices connected to a single or parallel port,
* Or a single peripheral device connected to 2 computers
* DB25 female to DB25 connectors
* Shielding reduces interference."