Black Box 4K USB 2.0 RS-232 Audio Video Extender DisplayPort
SKU: 20528987375

Black Box 4K USB 2.0 RS-232 Audio Video Extender DisplayPort

Sale price$225.86 Regular price$250.96
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Description

Black Box 4K USB 2.0 RS-232 Audio Video Extender DisplayPortThe Black Box 4K USB 2. 0 RS 232 Audio Video Extender DisplayPort is the ultimate allinone solution for delivering pristine 4K video, highspeed USB 2. 0 peripheral expansion, and RS232 control across rooms, campuses, or corporate environments. Engineered for reliability in conference rooms, classrooms, lecture halls, and control centers, this DisplayPort based extender blends performance, flexibility, and ease of use. Whether you are presenting in a

The Black Box 4K USB 2.0 RS-232 Audio Video Extender DisplayPort is the ultimate all‑in‑one solution for delivering pristine 4K video, high‑speed USB 2.0 peripheral expansion, and RS‑232 control across rooms, campuses, or corporate environments. Engineered for reliability in conference rooms, classrooms, lecture halls, and control centers, this DisplayPort-based extender blends performance, flexibility, and ease of use. Whether you are presenting in a large meeting space, teaching with crystal-clear visuals, or managing devices from a distant control room, this extender ensures seamless connectivity, robust signal integrity, and simple setup. With its durable build, low latency, and versatile feature set, it stands out as a premium choice for professionals who demand top-tier AV performance without compromise.

  • Ultra‑high-definition 4K video over long distances: Experience crisp, life-like imagery at 4K resolution with smooth motion and accurate color reproduction. The extender supports DisplayPort delivery from a source to a distant display, enabling high‑definition presentations, immersive video conferencing, and crystal-clear instructional content. The result is a dramatic improvement over standard HD, making every detail pop in classrooms, boardrooms, and event spaces.
  • USB 2.0 pass‑through for peripherals: Extend USB 2.0 peripherals—keyboard, mouse, cameras, audio devices, and more—alongside your video signal. This capability simplifies workspace layouts, reduces the need for local computing devices, and enables centralized control of devices from a single location. The high‑speed USB 2.0 channel delivers reliable data transfer with broad compatibility across a wide range of peripherals.
  • RS‑232 serial control and integration: The built‑in RS‑232 interface provides robust remote control and device management capabilities. Perfect for integration with room automation systems, projectors, cameras, and other serial devices, RS‑232 makes it easy to automate display actions, switch inputs, or trigger preset configurations from a centralized control system.
  • Reliable signaling and EDID management for long‑distance extension: The extender maintains signal integrity over extended runs, preserving color accuracy, timing, and synchronization between source and display. EDID management ensures compatibility with a wide range of displays and devices, minimizing compatibility issues and unexpected resolutions during setup or use.
  • Flexible installation for classrooms, conference rooms, and control rooms: Designed to adapt to a variety of environments, the extender supports a clean, compact form factor that fits behind displays, in AV racks, or mounted near the source. Its versatile driver‑less operation and plug‑and‑play features help AV technicians and IT staff deploy solutions quickly, minimize downtime, and scale setups as needs evolve.

Technical Details of Black Box 4K USB 2.0 RS-232 Audio Video Extender DisplayPort

  • Video interface: DisplayPort input and DisplayPort output for convenient, high‑quality video transmission. Supports 4K video resolution with clear, detailed imagery suitable for professional presentations and instructional content.
  • USB connectivity: USB 2.0 high‑speed pass‑through to enable peripheral devices at the remote site, including keyboards, mice, cameras, and other USB devices, without needing local PCs at the display end.
  • Serial control: RS‑232 serial port for remote device control, automation, and integration with room management systems. Ideal for powering on/off equipment, switching displays, or sending diagnostics from a control room.
  • Audio support: Integrated audio pass‑through for synchronized sound with video, ensuring a complete AV experience for demos, lectures, and meetings.
  • EDID management: EDID pass‑through and management features to maintain display compatibility and stable resolutions across various displays and sources.
  • Build and power: Sturdy chassis designed for desk, rack, or cabinet installation with a suitable power solution; compact footprint reduces rack space while maintaining performance.
  • Compatibility: Works with standard DisplayPort devices and commonly used AV equipment, providing a versatile solution for mixed signage, presentation, and instructional setups.
  • Environment and reliability: Engineered for stable operation in typical AV environments, with considerations for heat dissipation and durable construction to support daily use in classrooms and conference rooms.

how to install Black Box 4K USB 2.0 RS-232 Audio Video Extender DisplayPort

  • Power down the source device and the display, then connect the DisplayPort output from your video source to the extender’s DisplayPort input. Connect the extender’s DisplayPort output to the distant display using a DisplayPort cable. Ensure you use certified DisplayPort cables to maximize signal quality.
  • Attach the USB 2.0 peripherals at the remote end by plugging them into the extender’s USB ports. If you plan to control devices via RS‑232, connect the serial cable from the extender’s RS‑232 port to the target device or room controller.
  • Connect the local transmitter and the remote receiver components as specified by your model’s configuration. Use the recommended cables and avoid excessive cable lengths beyond the manufacturer’s guidelines to maintain signal integrity.
  • Power the units with the supplied adapters. If the model supports external power, ensure both sender and receiver are properly powered to enable full functionality.
  • Power on the source device first, followed by the displays and any connected peripherals. Allow a few moments for EDID negotiation and link establishment, then verify the 4K image appears clearly on the remote display and that USB devices respond as expected.
  • Test RS‑232 control by issuing a command from your control system or computer. Confirm that serial commands trigger the intended actions on the remote equipment (for example, switching inputs or powering devices). If issues arise, recheck cable connections and EDID settings.

Frequently asked questions

  • Q: What resolutions can I expect with this 4K USB 2.0 RS‑232 DisplayPort extender? A: The system supports 4K video delivery to the remote display, with reliable performance at high resolutions. Actual supported resolution and refresh rate can depend on system components, cabling quality, and source capabilities. For most presentations and instructional content, 4K/60 Hz enablement is typical when using appropriate DisplayPort cables and compatible hardware.
  • Q: Can I use USB peripherals at the remote end while displaying content? A: Yes. The extender provides USB 2.0 pass‑through to remote peripherals, enabling usage of keyboards, mice, cameras, and other USB devices at the display end without needing a separate PC at that location.
  • Q: How far can I extend the signal? A: Distance ranges vary by model and cabling. The extender is designed for long‑distance transmission, with performance dependent on cable quality and system configuration. Always use recommended cables and follow the manufacturer’s guidelines to achieve optimal results.
  • Q: Is RS‑232 control compatible with most room automation systems? A: The RS‑232 interface is a standard serial connection widely used for room automation and device control. It integrates well with many automation systems, but you should verify baud rates, parity, and command sets with your specific equipment.
  • Q: Do I need software drivers to use this extender? A: In most cases, no software drivers are required. The device is designed for plug‑and‑play operation with DisplayPort video, USB peripherals, and RS‑232 control. Some environments may benefit from custom automation scripts or control system configurations.
  • Q: Can this extender support daisy‑chaining or multi‑display setups? A: This description covers a single pair extension (source to remote display). For multi‑display configurations, you may need additional extenders or a separate multi‑display solution, ensuring compatibility with your source and displays.
  • Q: What about audio connectivity? A: The extender includes audio pass‑through to synchronize sound with video across the extended link, making it suitable for multimedia presentations, lectures, and conferences where clear audio is essential.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 20528987375

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Justin B.
Bozeman, US
★★★★★ 5
Sturdy, worked well
Holds it sturdy
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Reviewed in the United States on December 21, 2025
B
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bms
Cuba, US
★★★★★ 5
Solid as described
Value for money and easy installation
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Reviewed in the United States on October 4, 2025
R
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Ruby salas
San Leandro, US
★★★★★ 5
Great choice to save space
Color: Black, Color: Black
Works really well. Installation is simple with included hardware. Upgraded my laptop and was able to fit thicker laptop. Glad i saved space on small desk. Extremely sturdy and great price.
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Reviewed in the United States on March 26, 2026
D
Verified Purchase
Dell Conagher
Pawtucket, US
★★★★★ 5
Pretty cheap but surprisingly solid
Color: Black
This thing comfortably fits my 16” MacBook Pro. It does tilt a bit probably due to me screwing it to the underside of my wooden desk which probably isn’t the exact use for it, but it holds really strong and isn’t going anywhere. Combining this with a small USB-C hub for some USB As and and extra HDMI and a little bit of Velcro, this holder makes for a pretty solid option to hide you laptop away if you a surprisingly clean desktop-like experience, even if you’re on a budget and can’t afford a desktop. A proper thunderbolt docking station would go a long way with this as well.
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Reviewed in the United States on March 16, 2026
J
Verified Purchase
JJD
Birmingham, US
★★★★★ 4
Works as advertised
Color: Black
Functions as described. Looks good. Laptop fits in loosely. I’d prefer a more snug fit. Other than that, works as advertised.
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Reviewed in the United States on March 19, 2026

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