(4 Port HDMI KVM Switch 4X2 Dual Monitor 4K@60Hz Extended Display USB KVM Switch 4 in 2 out for 4 PC Share Keyboard Mouse Monitor. 2)The KVM Switch can not increase the video out of your pc or laptop.
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QGeeM 4K HDMI Extension Cable Extender HDMI 2.0 Adapter for Xiaomi Xbox Serries X PS5 PS4 TV Box Laptops HDMI Splitter Wire Cord
Aliexpress UK
4K 30hz 9x1 HDMI-compatible Multiviewer 4K 9 In 1 Out 1080P Screen Multi Viewer HDMI Multi-Viewer Seamless Switch With IR. 10 Ways Viewing Screen: 9X1 Quad MultiView Selector support 10 viewing modes.
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8K HDMI Cable Fiber Optic HDMI 2.1 Cable 8K 60Hz 4K 120Hz 48Gbps eARC HDCP HDR 10+ for TV Box PC PS4/5 HDMI-Compatible 2.0 Cable
Aliexpress UK
Bi-directional display switcher.
eBay
Vention HDMI-Compatible 2.1 Cable 8K/60Hz 4K/120Hz for Xiaomi Mi Box PS5 Dolby Vision 48Gbps HDMI-Compatible 8K HDMI 2.1 Cable
Aliexpress UK
Used in great working condition and physical shape. Comes with what is in the picture.
eBay
8K HDMI Extension Cable Male To Female 1.5M/2M/3M HDMI 4K 3D 2.1v HDMI Extended Cable for HDTV LCD Laptop PS3 Projector Tv Box
Aliexpress UK
AV-Pro 3 Port HDMI IR Remote Switch- 3x1 (5 way input 1 output) - 1080p Full HD - v1.4 3D Support - HDMI Switcher. Coax Cables. Xbox One & 360. HDMI Cables. HDMI Extenders. HDMI Matrix. HDMI Splitters.
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HDMI-Compatible Adapter Mini/Micro HDMI To HDMI 8K 60Hz 4K 120Hz/144Hz Male To Female Converter For HDTV Laptop PS4/3 TV box
Aliexpress UK
HDMI Switch Box 4K@60Hz Bidirectional Splitter. Condition is New. Dispatched with Evri Tracked.
eBay
Unnlink HDMI Audio Extractor HDMI to SPDIF Optical Toslink Coaxial 3.5 Aux+4K HDMI Converter for TV box to TV Soundbar Amplifier
Aliexpress UK
Realization of 4K resolution requires 4K rated input source, HDMI cable, and output display. Support 4K x 2K (Downwards compatible). 3 to 1 HDMI Switch: allows access to multiple HDMI sources with 3 HDMI IN and 1 HDMI OUT ports for various HDMI devices connection.
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HDMI-compatible Switch 4K Switcher 3 In 1 Out Full HD 1080P Video Cable Splitter 1x3 Hub Adapter Converter For TV Box HDTV PC
Aliexpress UK
1x HDMI 4x1 quad KVM multi-viewer. 5 Ways Viewing Screen：The 4X1 Quad MultiView Selector support 5 viewing modes. You could see 4 HDMI input sources screen on one monitor by 4 ways, also can only see only one HDMI input source by full screen;.
eBay
HDMI-compatible 4K Splitter Switch 1 in 2 Out Video Distributor Amplifier Dual Display for Box PC Monitor Projector Laptop
Aliexpress UK