HDC403-P23-UKBK
Three Monitor MST KVM Docking Station Kit - 4K60Hz, EDID for 1 Laptop & 3 PCs
- Regular price
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€874,90 - Regular price
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€874,90 - Sale price
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€874,90
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Overview & Highlights
- Includes KVM to PCs cable (1*DisplayPort cable, 1*USB-C cable, 6*HDMI cable, 3*USB 3.0 Type-A to Type-B cable) for a complete setup.
- Choose between shared or independent PC views with 2 modes.
- Easily change inputs using hotkeys, the front panel button or the remote control. Seamless keyboard and mouse operation after switching.
- EDID emulation prevents resolution and icon reordering.
- Keyboard and mouse pass-through ensures adaptability with various keyboards including wired, wireless, mechanical and gaming keyboards.
- One-touch locking KVM to protect private information, with audio pausing and LCD screen brightness reduction.
- LCD visual display for easy setup, equipped with 3 lockable USB 3.0 channels and 1 integrated microphone and L/R audio output.
- Removable rack ears for easy rack integration.
Scope of delivery
- 1 * 4x3 KVM switch
- 2 * KVM cables
- 4 * DP cables
- 2 * USB-C cables
- 1 * IR remote control
- 1 * DC-20V power supply
- 1 * User manual
- 2 * Rack panels
Downloads & User Manual
Thank you for shopping at https://www.tesmart.de/. To track your order, please contact tesmart.de (service@tesmart.de) so that we can provide you with the tracking number of the order.
Order processing time
- This is the time that elapses between the customer placing the order and the seller handing over the order to the delivery service.
- Orders are usually shipped within 1-3 business days after order confirmation/payment. Orders placed over the weekend may experience delays.
- Our warehouse is open Monday through Friday during normal business hours only, excluding public holidays. In these cases, we take steps to minimize shipping delays.
-In general, your order will be carried out from our warehouse in GERMANY. However, if the warehouse in GERMANY is not in stock, we will expedite the shipping from our Chinese warehouse for you. Rest assured, we aim to get your order to you as quickly as possible.
Shipping costs & shipping time
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Area
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Approximate delivery time
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Shipping costs
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courier
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Germany
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2-5 days
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Free shipping
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DHL
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Belgium, Denmark, France, Luxembourg, Monaco, Netherlands, Austria, Poland, Czech Republic
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3-8 days
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Free shipping
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DHL
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| Liechtenstein, Switzerland, Monaco | 3-8 days | €10 | DHL |
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Italy, Sweden, Slovakia, Slovenia, Spain, Hungary
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5-10 days
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Free Shipping
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DHL
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| Andorra, San Mariello, Vatican | 5-10 days | €10 | DHL |
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Bulgaria, Estonia, Finland, Greece, Ireland, Croatia, Latvia, Lithuania, Malta, Portugal, Romania, Cyprus
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7-15 days
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Free Shipping
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DHL
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| Albania, Bosnia and Herzegovina, Faroe Islands, Greenland, Iceland, North Macedonia, Montenegro, Norway, Moldova, Serbia, Ukraine, Belarus | 7-15 days | €10 | DHL |
| Åland Islands, Gibraltar, Guadeloupe, Guernsey, Isle of Man, Jersey, Kosovo, Mayotte, Réunion, Svalbard and Jan Mayen, Georgia, Turkey, Armenia | 10-30 days | €10 | DHL |
| UK | 10-12 days | Standard 0kg-5kg €65.00 EUR Heavy goods shipping 5kg and more €80.00 EUR |
FedEx/DHL |
Due to the special customs tariffs in Great Britain, there is a high probability that shipments from EU countries will be rejected. Therefore, we are forced to charge shipping costs of at least 65 euros for shipping our goods from China. We apologize for any inconvenience this may cause you.
Total shipping time = processing time + shipping time (depending on your location)
Tracking
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You will receive an email when your order has been shipped. You will receive a tracking number (tracking number will become active within 24 hours). Please note: this may take longer during events or public holidays.
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Tracking information may take 48 to 72 hours to update.
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If you cannot track your package normally, please contact us and we will solve this problem within 48 hours.
Delivery time exceeded
In general, your order will be processed from our warehouse in GERMANY. However, if the warehouse in GERMANY is not in stock, we will expedite the shipping from our Chinese warehouse for you. Rest assured, we aim to get your order to you as quickly as possible.Delays may occur due to logistics planning or other unavoidable circumstances.If your order is delayed, please contact us by email service@tesmart.de. We will clarify the situation with the transport company in time. Thank you for your understanding and support.
Cancellation of order
We can cancel the order for you if you contact us in time after your purchase. If your payment has been completed and the package has not yet been dispatched, you can cancel your order before your item is delivered. We will then refund you in full.
Orders cannot be canceled once the package has been shipped.
About taxes
On rare occasions, customs fees may be charged by your government, not by us. We apologize for any inconvenience, but we have no control over the customs authorities in your country or any other. Contact your local customs office for more information on customs fees, duties and taxes.
Phone: +（86）136 0253 9310
Email: service@tesmart.de
- TESmart-Bestellungen werden automatisch bearbeitet. Nach dem Versand können sie nicht storniert oder geändert werden, einschließlich Adressänderungen.
- Wenn Sie eine Rückgabe oder Rückerstattung wünschen, kontaktieren Sie uns bitte innerhalb von 30 Tagen nach Erhalt des Produkts unter service@tesmart.de.
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Die Rückgabe ist nur möglich, wenn das Produkt unbenutzt, vollständig und originalverpackt ist.
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Bei nicht qualitätsbedingten Rückgaben trägt der Kunde die Rücksendekosten.
- Bei Rückgabe oder Rückerstattung aufgrund von Qualitätsproblemen übernimmt TESmart die Rücksendekosten.
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Produkte, die nach 30 Tagen und innerhalb von 2 Jahren Probleme aufweisen, können nicht zurückgegeben, aber je nach Prüfung repariert oder ersetzt werden (nur gleiches Modell, Ersatz bevorzugt für Mitglieder).
- Zwischen dem 2. und 3. Jahr wird kein Rückgabe- oder Rückerstattungsservice angeboten. Mitglieder können nach 3 Monaten ab Kaufdatum im Rahmen der Trade-in-Politik einen Rabatt von bis zu 50 % des ursprünglich gezahlten Produktpreises auf den Kauf eines neuen Produkts erhalten. Für detaillierte Geschäftsbedingungen besuchen Sie bitte: https://tesmart.de/pages/tesmart-id-trade-in
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Rückerstattungen erfolgen innerhalb von 5 Werktagen nach Wareneingang im Lager.
Für Fragen: service@tesmart.de
Vollständige Richtlinien:
Technical data
| Produkattribute | |
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Modell (SKU) |
HDC403-P23-UKBK
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Kompatibles Setup |
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Max Resolution |
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Supported Resolutions |
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VRR (Variable Bildwiederholfrequenz) |
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MST (Multi-Stream Transport) |
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Laptop-Aufladung |
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Netzwerkanschluss |
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Independent Audio Focus Switching |
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Independent Audio Focus Locking |
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Thunderbolt 4 Ports |
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EDID Emulation |
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Umschaltmethoden |
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Belegbare Hotkeys |
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Legacy-Emulationsmodus |
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Input Ports |
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Output Ports |
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Docking Ports |
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Anzeigemodi |
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Handbuch (PDF) |
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Triple display via a single USB-C cable (MST)
From 4K to 240 Hz – it simply works.
Three displays, more flexible modes
EDID emulation – Stable screens, no surprises
Easy switching – 4 ways to select
Expand your workspace to three monitors – with just one USB-C cable, thanks to MST (Multi-Stream Transport). No docking station required.
⚠️ macOS, Ubuntu and Linux do not support MST.
✅ Windows supports triple display via USB-C (DP 1.2+).
⚠️ Maximum configuration: 2× 4K@60Hz + 1× 4K@30Hz.
One switch, endless possibilities. Whether gaming, content creation, or multi-window workflows – our KVM handles a wide range of resolutions and refresh rates with ease.
Each KVM output supports up to:
• 3840×2160 (4K UHD) — 60Hz
• 3440×1440 (21:9 Ultra-Wide) — 100 Hz
• 3840×1080 (32:9 Ultra-Wide) — 120 Hz
• 2560×1440 (QHD) — 120Hz
• 2560×1080 (21:9 Ultra-Wide) — 165 Hz
• 1920×1080 (FHD) — 240Hz
⚠️ MST maximum: 2×4K60Hz + 1×4K30Hz
• Mode 1: One PC on all 3 monitors (Extend or Mirror)
Use a single PC to drive all three monitors. Ideal for multi-window workflows such as video editing, financial dashboards, or immersive simulations. Mirror or extend the display via your system settings.
• Mode 2: Display any 3 out of 4 PCs simultaneously on 3 monitors
Assign a different PC to each monitor. For example, point PC1 to monitor A, PC2 to monitor B, and PC4 to monitor C – any combination is possible. Perfect for developers, cybersecurity labs, or monitoring multiple systems.
Switching between displays shouldn't mess up your desktop. Our integrated EDID emulator ensures your layout stays exactly as you left it.
• No more misplaced symbols
Retains the position of desktop icons and the size of open windows when switching inputs.
• Flicker-free switching
Prevents screen dropouts and flickering caused by re-initializing the display.
• Smoother multitasking
Maintains visual consistency between workstations and monitor setups.
✅ With TESmart EDID emulation: Your display remains stable and unchanged – even after switching.
⚠️ Without EDID emulation: Icons move, window sizes change, and the screen flickers after every switch.
Switching shouldn't slow you down – we offer four seamless methods to suit every setup and habit:
• Hotkey switching – Fixed key combinations for quick source switching
• Front button operation – Direct access, anytime and easily
• IR remote control – Convenient control from your desk
• Mouse wheel toggle – Double tap, toggle instantly
Whether at work, gaming, or giving presentations – choose the method that suits your workflow.
Independent USB & Audio Focus Lock
Prevent unintentional input – even from your cat
Dedicated K&M ports with dual-mode support
Check device compatibility before purchasing
Switch displays without interrupting your USB devices or audio connection.
This KVM allows you to independently lock the focus of USB 3.0 and L/R audio – so that headsets, webcams or external drives remain connected to the current PC, even during screen switching.
Highlights:
• Lock USB and audio focus separately
• Avoid interruptions to calls or devices
• Lock status remains even after restarting
✅ Ideal for meetings, streaming and multitasking
⚠️ USB focus ≠ Keyboard & mouse focus – they are switched separately
Prevent unwanted input during meetings, presentations, or breaks. With just one keystroke, you can lock the video output, audio, and all control interfaces.
• One-touch lock
If the display freezes, USB, audio, keyboard shortcuts and IR control are disabled.
• PIN unlocking
Continue your session exactly where you left off – with your individual password.
• Reassuring security
Prevents accidental switching – ideal for households with children or pets.
✅ Key combinations and remote controls are disabled when the device is locked.
⚠️ To unlock, press the lock button again and enter your PIN.
To improve keyboard and mouse compatibility – especially when switching hotkeys – we have developed two special connection modes:
• Pass-through mode (recommended)
Direct routing to the PC. Supports advanced drivers, macros, high-DPI mice, and multifunctional input devices. Ideal for gaming, design, and professional workflows.
• Legacy emulation mode
Ensures universal compatibility and stable hotkey functionality on most systems. Best suited for office use or when experiencing driver issues.
✅ Hotkey commands only work when your keyboard is connected to the dedicated K&M port.
⚠️ In emulation mode, driver-based software and advanced features are disabled.
⚠️ Bluetooth keyboards and mice are not supported.
⚠️ Legacy emulation mode is available via firmware update (Prime-23 series).
Please ensure that your laptop's USB-C port supports both video output and data transfer to avoid functional problems.
FAQs
Why does my laptop show 'Slow Loading'?
Charging power limitation: To ensure stability and reduce heat generation, the KVM switch provides up to 60W (20V, 3A) of charging power. This is usually sufficient for business laptops. However, if your laptop does not support a 20V input or is a high-performance device, the charging speed may be limited.
For high-performance devices (gaming/workstation laptops): Devices with a power requirement of 90–120 W or more may charge slowly. We recommend using the original laptop power adapter in parallel with the KVM connection.
Additional notes: Ensure good ventilation around the KVM switch to prevent overheating. If the KVM switch is not going to be used for an extended period, it is best to switch it off.
How can the fan speed be adjusted?
The KVM switch supports four fan modes. Each mode is indicated by the number of beeps from the buzzer. The default mode is mode 2.
To set the fan mode: Press [Right Ctrl] → [Right Ctrl] → [F3] to switch between modes:
- Fan mode 1: The fan is deactivated. The buzzer sounds once.
- Fan mode 2: The fan operates automatically based on the current temperature. The buzzer sounds twice.
- Fan mode 3: The fan runs continuously at low speed. The buzzer sounds three times.
- Fan mode 4: The fan runs continuously at high speed. The buzzer sounds four times.
Can I connect a macOS computer to achieve a three-screen output?
No. Because macOS does not natively support MST (Multi-Stream Transport), the HDC403-P23 cannot provide triple extended screen display when connected to a macOS device. If you require triple screen output on macOS, we recommend our new HDC203-PM24 model, which supports DisplayLink technology. It is specifically optimized for macOS and allows you to bypass system limitations and take advantage of true multi-display extension.
Why isn't my audio device working?
Connection Requirements: The audio function of the KVM switch relies on the USB-C ports of PC1/2 and the USB-B ports of PC3/4. Please ensure that the computers' USB cables are securely connected to all four ports.
Sound settings on the computer
- For 3.5 mm jack connection: In your computer's sound settings, select "USB Audio" as the default output device.
- For USB connection: Select the appropriate USB audio output, e.g., "USB Audio Device" or "USB Headset", depending on your system's display.
If no sound is output via the 3.5 mm output even after correct adjustment, we recommend using a USB sound card (USB to 3.5 mm adapter) to improve compatibility and ensure proper audio output.
Why aren't my USB peripherals working?
Connection Requirements: The KVM switch uses USB data transfer via the USB-C ports of PC1/2 and the USB-B ports of PC3/4. Please ensure that the computers' USB 3.0 ports are securely connected to all four ports.
Port restrictions: USB ports marked with keyboard/mouse symbols are exclusively for these devices. Other USB peripherals (e.g., printers, webcams, flash drives) must be connected to the dedicated USB ports on the KVM switch.
Bandwidth limitations: The KVM switch acts as a USB hub, meaning all connected peripherals share the same USB bandwidth. If the total bandwidth requirement exceeds the KVM's capacity, devices may become unresponsive or fail.
Power supply issues: Some high-performance USB devices may not receive enough power from the KVM switch. Recommended workaround:
- Connect high-performance USB devices directly to your PC whenever possible.
- For better stability, use a powered USB hub between the KVM switch and the device.
USB Hub Cascading Limitations: The USB architecture supports a maximum of 7 cascading levels, including: Host controller + up to 5 USB hubs + 1 device level. Exceeding this limit can result in unrecognized or malfunctioning devices. Example of a USB chain: PC → Docking station → KVM switch → USB hub (→ additional USB hub) → Peripheral device
Recommended solutions:
- Bypass docking stations: Connect the PC's USB-A port directly to the KVM switch.
- Minimize cascading: Connect peripherals directly to the KVM whenever possible to avoid excessive USB hub layers.
Does the KVM switch support firmware updates?
Yes, TESmart KVM switches support official firmware updates designed to fix common problems and improve compatibility.
Important note: Firmware updates carry inherent risks. Installing the wrong version or performing the process incorrectly can lead to device malfunctions. Therefore, it is strongly advised against performing a firmware update yourself if your device is functioning normally.
If an update is required, please contact our technical support team for:
- The correct firmware version for your specific model.
- Step-by-step update instructions.
- Technical support throughout the entire process.
Why aren't my keyboard and mouse working properly?
Common symptoms:
- Keyboard input is unresponsive or delayed;
- Keystrokes get stuck or are registered twice;
- Mouse movements lag or stutter;
- Keyboard shortcuts (hotkeys) do not work.
Recommended solutions:
- Try switching to Legacy Emulation mode to improve compatibility with a wider range of keyboards and mice: Press [Right Ctrl] + [Right Ctrl] + [F2].
- If the problem persists, please contact our technical support team at support@tesmart.com for expert assistance and guidance on troubleshooting and resolving the issue.
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Recycling & Trade-in
Up to 50% credit for recycling
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Free Shipping
DE: 3 working days · EU: 3–7 working days
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30-day free return policy
Hassle-free returns & purchase guarantee
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Extended warranty: 2+1 years
Register and receive an additional year of warranty
