I have a bunch of DFI serial/parallel adapters for sale for $7.50 each ($20 for 3) plus shipping, with docs. They have the Winbond chipset that includes 16550 UARTS and gives you 2 serial and 2 parallel ports. Better than an A/B switch if you run more than one printer, or great if you have a parllel port device like scanner. No more worry about conflicts. Works great under DOS through Win98. I have one in everyone of my 8 bit and 16 bit machines and one in my EISA server. This one is excess and needs a good home Totally setable to whatever you need. The docs (if you want to look at them) are available in PDF format at ftp://ftp.dfiusa.com/multi_io_cards/DIO222/d220830.pdf Full spcifications are shown. Includes 2 9 pin serial and 2 25 pinprinter ports, one of each on the card and one of each on an addtional slot filler, but you can move these to case openings if you desire. Shipping is minmal, probably $3.25 for a couple of them. Also have a couple Intel (and other brands) 14,400 baud internal faxmodems. Windows 95 and 98 see them fine and they work great with Win 3.1 and DOS too. All clean and in great shape. $6 each or 3 for $15 plus shipping. Again, a light item. These work great for someone with an occasional need for internet, send/recv faxes or to use free email or call BBS systems.. These items are for sale to US and APO/FPO addresses only. Shipping to other countries is not cost effective and is a real pain in many cases. I use USPS parcel post, insured unless priority is real close to the same price. Drop me a direct email if interested. Payment by money order only. Ships the same or next day as payment is recieved. These are items I have picked up for other projects and ended up with way too many, these are not connected with a business and are personal sales.