![2 Port PCI RS232 Serial Adapter Card - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Europe 2 Port PCI RS232 Serial Adapter Card - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Europe](https://media.startech.com/cms/products/gallery_large/pci2s550.main.jpg)
2 Port PCI RS232 Serial Adapter Card - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com Europe
![DTech Serial Splitter 8 Port, Industrial RS232 Expander COM Port Switch Box with Power Adapter for Sharing PCs and Capture Data - 1x8 : Amazon.ca: Electronics DTech Serial Splitter 8 Port, Industrial RS232 Expander COM Port Switch Box with Power Adapter for Sharing PCs and Capture Data - 1x8 : Amazon.ca: Electronics](https://m.media-amazon.com/images/I/61UsPw5pf5L._AC_UF350,350_QL80_.jpg)
DTech Serial Splitter 8 Port, Industrial RS232 Expander COM Port Switch Box with Power Adapter for Sharing PCs and Capture Data - 1x8 : Amazon.ca: Electronics
![Donkey pc - 2 Port RS232 Serial Card on PCI Express - PCI-Express Serial Port Card Extension 2 Port Serial Extension Adapter Card - Expansion Controller Card: Amazon.co.uk: Computers & Accessories Donkey pc - 2 Port RS232 Serial Card on PCI Express - PCI-Express Serial Port Card Extension 2 Port Serial Extension Adapter Card - Expansion Controller Card: Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71j+-oQmgrL._AC_UF350,350_QL80_.jpg)
Donkey pc - 2 Port RS232 Serial Card on PCI Express - PCI-Express Serial Port Card Extension 2 Port Serial Extension Adapter Card - Expansion Controller Card: Amazon.co.uk: Computers & Accessories
![Product | StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) - serial adapter - USB - RS-232 x 4 Product | StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) - serial adapter - USB - RS-232 x 4](https://cdn.cs.1worldsync.com/90/44/9044232f-4026-4218-a91d-c2a7df098662.jpg)
Product | StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) - serial adapter - USB - RS-232 x 4
![2 Port RS-232C DB9 Manual Switch for PC rs232 serial port switch sharing Splitter device Steel Case MT-232-2 - AliExpress 2 Port RS-232C DB9 Manual Switch for PC rs232 serial port switch sharing Splitter device Steel Case MT-232-2 - AliExpress](https://ae01.alicdn.com/kf/S3d7955d3aa594783a466008c68cef821J/2-Port-RS-232C-DB9-Manual-Switch-for-PC-rs232-serial-port-switch-sharing-Splitter-device.jpg)