You invested in the Apple Studio Display for its 5K Retina resolution, P3 color gamut, and professional audio quality. But as soon as you try to Connecting a Windows PC to the Apple Studio Display, You'll quickly encounter a compatibility barrier: The monitor only has Thunderbolt™ 3 ports, while most desktop PCs use HDMI or DisplayPort. Conventional adapters or third-party capture cards often result in a reduction to 1080p, missing audio channels, input lag, or complete connection failures.
Designed for desktop workflows
| Entrance | Device type | Description |
| PC1 | Mac | 40 Gbps full-duplex, supports 60W PD, native passthrough with 5K@60Hz |
| PC2 | Windows Desktop | HDMI 2.0 + USB 3.2 Gen 1 for desktop PCs, 4K at 60Hz |
| PC3 & PC4 | Game consoles & Media devices | PS5, Xbox, Switch, streaming boxes, DVD players, 4K 60Hz |
| Output 1 | Apple Studio Display | Connection to the Apple Studio Display with video, audio and data transfer via a single cable |
5 key upgrades: 40 Gbit/s, HDMI-Audio & Full preservation of native functions
1. Native HDMI inputs for desktop-to-studio display connection
2.Deep Thunderbolt passthrough on PC1 – fully preserving the native Studio Display experience
While signals from multiple devices are combined, the Thunderbolt port PC1 of the THK401-X4 an integrated Intel JHL8440 chip, which all core functions of the display are fully preserved. The ultra-wide camera, microphone array, and six-speaker system remain usable right out of the box without any additional setup. You don't have to choose between multi-device switching and the full Apple experience—every interaction designed by Apple works just as naturally as with a native, direct connection.
3. HDMI audio passthrough: Native sound directly through the display
The THK401-X4 It supports HDMI audio passthrough, allowing your desktop PC's audio to be output directly through the Studio Display in sync with the video signal. No additional speakers or headsets are required for game consoles. This eliminates the common "picture without sound" problem often encountered with traditional adapter solutions, and immersive sound perfectly complements the high-quality picture.
4. Thunderbolt Display compatibility confirmed through real desktop testing
Thanks to the Intel JHL8440 chip for Thunderbolt™ protocol processing, the product was able to operate under real operating conditions It has been tested and supports common Thunderbolt™ displays such as Apple Studio Display, LG UltraFine 5K, and Dell U2725QE. Through native protocol passthrough, it ensures full interaction of video, audio, and data channels and integrates seamlessly into Thunderbolt™ workflows.
5. One-click merging of multiple HDMI devices – seamless switching between entertainment and creativity
The THK401-X4 Expands the boundaries of modern digital workspaces. Its two additional HDMI channels fully support PS5, Xbox Series X|S, Nintendo Switch, as well as streaming players, DVD players, and other HDMI devices. Game commands and refresh rates remain perfectly synchronized – with no input lag. 4K videos are displayed smoothly and with crystal-clear sharpness, offering a completely new visual experience. No drivers, no background processes – connect Macs, PCs, game consoles, and DVD players with a single cable and transform your premium display into a central platform for work and entertainment.
Core functions – nothing is missing
1. Integrated Gigabit Ethernet sharing: Manage your wired network using just one cable.
Simply connect a single Ethernet cable to the KVM to allow multiple hosts to share a stable Gigabit network. The integrated network switch supports isolated or shared network channels as needed, completely eliminating Wi-Fi fluctuations and cable clutter.
2. Thunderbolt port PC1 supports 60W PD charging
The Thunderbolt PC1 port integrates the 60W PD fast charging protocol. When connecting a MacBook, video output, high-speed data transfer, and device charging are supported simultaneously. Say goodbye to extra power adapters – a single cable is all you need to keep your workspace clean and productive.
3. HDMI EDID retention: No desktop layout reset when switching.
Traditional KVM switches often trigger new display handshakes, leading to resolution changes, shifted windows, and disrupted application layouts.The THK401-X4 features an integrated EDID emulation chip that continuously simulates an active monitor for HDMI devices. When switching, HDMI devices don't need to re-detect the display, thus preserving desktop layouts, multi-monitor settings, and color profiles – for true seamless switching.
4. USB 3.2 High-Speed Peripheral Matrix: Control everything with just one keyboard and mouse
Thanks to the integrated USB data sharing channel, the keyboard, mouse, webcam, and external hard drive automatically follow the active video source. Repeated plugging and unplugging or manual reconnection is no longer necessary – a single switch synchronously migrates the entire peripheral setup, significantly reducing friction and driver conflicts in multi-device workflows.
5. Four-dimensional interaction control for every situation
The THK401-X4 offers four control methods: physical front buttons, customizable keyboard hotkeys, quick switching via mouse wheel, and an infrared remote control. Whether programming at your desk, multitasking, or controlling the device from a distance, signal sources can be switched intuitively and instantly, allowing work and entertainment to blend seamlessly.
Conclusion
FAQ
1. My Windows desktop only has one HDMI port. Can I connect it directly to the Studio Display?
A: Yes. Via the HDMI input channel of the THK401-X4 Your desktop PC can output 4K-60Hz video to the Studio Display or Pro Display XDR.
2. Do I need to install drivers?
A: No. The THK401-X4 It is based on pure hardware design, is true plug-and-play and compatible with Windows 10/11, macOS and common game consoles.
3. Are the camera, microphone, and speakers of the studio display still working?
A: Yes. All native functions are fully retained and can be used normally.
4. Does switching HDMI ports reset the window layout?
A: No. The integrated EDID retention ensures that window positions and resolutions remain unchanged after switching.
5. Is this product officially certified by Intel?
A: Not yet officially certified, but extensively tested in real-world environments and fully functional. The certification process is currently underway.
6. Which displays are supported?
A: Common Thunderbolt™ displays such as Apple Studio Display, Pro Display XDR, LG UltraFine 5K and Dell U2725QE.
7.How much does the product cost and where can I buy it?
A:4-Port KVM for Apple Studio Display – Compatible with Thunderbolt™ 4 and HDMI devices – TESmart.DE
Related guides
If you have a multi-computer setup around the Apple Studio Display or XDR These guides could be helpful in building a foundation.
Thunderbolt™ Technology: A Universe of Possibilities
Studio Display - Technical Specifications - Apple
Connect PS5/Xbox to Studio Display via Thunderbolt™-compatible KVM – TESmart
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