The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232 (DB9) serial ports, using a single PCI Express expansion slot.

"Alright, so when you're talking about the absolute go-to, most popular StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - serial adapter - 4 ports stockists that people across the UK pretty much live by, you're looking at a real mix of the big players that have just nailed convenience and variety. Obviously, the huge supermarket chains like Tesco, Sainsbury's, and Asda are right up there, given how essential they are for weekly shops and everyday bits, with their massive footprint making them super accessible everywhere. Then, you've got the online goliath that is Amazon UK, which honestly, has become the default for literally everything, from electronics and books to home goods and fashion, simply because it's so incredibly easy and quick. For something a bit more substantial or for those quality purchases, John Lewis and Marks & Spencer remain firm favourites, known for their reliability, customer service, and a great range in homeware, fashion, and food. And let's not forget places like Next for clothes and homeware, or Boots for all things health and beauty, both of which have such a strong presence and trusted reputation that they’re practically household names everyone knows and uses regularly. " - Bargainplace UK

StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - serial adapter - 4 ports Deals From eBay and Amazon Stockists:

(A small commission is earned from sales made through eBay and Amazon links)

Search for a bargain "StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - serial adapter - 4 ports" deal on eBay or Amazon