Connect 2 different devices to the DVI connection of the switch and select manually which device you want to put through. Only digital signal is passed threw DVI. Multiple simultaneous output to the monitor should not.
eBay
1080P DVI to VGA Cable Connector DVI 24+5 Adapter Male to Female DVI to VDA VJA Adapter for Computer Monitor HDTV Projector VGA
Aliexpress UK
NEW Startech sv231dpddua2 2 Port DisplayPort Dual-monitor KVM Switch 4k 60 Hz. Model: sv231dpddua2. Notes: new unboxed but may have the odd mark from storage. You will only get what is pictured.
eBay
USB C to DVI adapter Thunderbolt 3 Usb-c Type C USB 3.1 to DVI cable adapter for Dell XPS 13 15 Apple Macbook Pro to DVI monitor
Aliexpress UK
NEW Startech sv231dpddua2 Job Lot 5x 2-Port DisplayPort Dual-Monitor KVM Switches - 4K 60Hz. Model: sv231dpddua2. Notes: new unboxed but may have the odd mark from storage. You will only get what is pictured.
eBay
DisplayPort to DVI Cable 1080P DP to DVI-D monitor cable DisplayPort in to DVI out converter adapter for Nvidia HP Dell Asus
Aliexpress UK
DVI 2 Port Manual Select Switch. 2 Ports DVI Manual Sharing Switch 2 Monitors to 1 Device. ◆ Connect 2 different devices to the DVI connection of the switch and select manually which device you want to put through.
eBay
HDmatters DisplayPort to DVI cable DisplayPort DP to DVI Monitor video cable DP in to DVI out 3M,1.8M,0.9M,0.45M
Aliexpress UK
The dual DVI KVM switch lets you instantly switch back and forth between PCs at the touch of a button, while maintaining professional-quality video on both monitors (high digital resolution of up to 1280 x 1024, analog resolutions up to 1920 x 1440).
eBay
DP to DVI Cable Adapter HD 1080P DisplayPort Male to DVI Female DP to DVI Converter Cable For PC Laptop HDTV Monitor Projector
Aliexpress UK
StarTech 2 Port DVI VGA Dual Monitor KVM Switch USB with Audio & USB 2.0 Hub 1920 x 1200 pixels WUXGA 18 W Black. Collection Model: Startech 2 Port DVI VGA Dual Monitor KVM Switch USBwith Audio & USB2.0 Hub.
eBay
HD 1080P DVI to DVI Cable 0.3M/1M/1.8M/3M/5M Gold Plated Plug DVI-D Video Adapter Cable Male-Male 60Hz For LCD HDTV XBOX Monitor
Aliexpress UK
★DVI 2 Port Manual Select Switch ★. 2 Ports DVI Manual Sharing Switch 2 Monitors to 1 Device. Connect 2 different devices to the DVI connection of the switch and select manually which device you want to put through.
eBay
DVI to HDMI Cable or HDMI to DVI BI-Direction Cable 1080P HDMI to DVI 24+1 Adapter Cable for PS4 PS5 TV BOX Monitor Projector
Aliexpress UK
1920X1080 FULL HD support. Only digital signal is passed threw DVI. Female DVI potrs. SUPPORT: ONLY DVI SINGLE MODE Multiple simultaneous output to the monitor should not. (manual selection screen switching).
eBay
Vention DisplayPort to DVI Cable 1080P 24+1 DP to DVI-D Male to Male Adapter for PC Laptop Monitor Projector DP to DVI Cable
Aliexpress UK