Originally Posted by Technician
The problem is trying to hold on to hardware that has been phased out.
You'd be amazed actually at how prevalent RS232 still is in manufacturing and warehousing. I still see more serial scales than I do USB ones for parcel shipments at customer warehouses.
To answer the OP's question - in part I want to say good luck. Finding a new laptop with it built in is gonig to be near impossible. That said, if you can get a business line laptop that supports this (or any newer version of it) it should fit your needs:
My experience with docking stations like that is windows and the connected devices have no clue it's not actually a port on the motherboard, integration is seamless. Just make sure the one you order is compatible with the one for your laptop and actually does include the serial port as lower-end models tend to cut down on those.