UGREEN DisplayPort Dummy Plug | 1080p@60Hz Headless Emulator
UGREEN DisplayPort Dummy Plug | 1080p@60Hz Headless Emulator
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Short Product Description
Short Product Description
Tired of your remote desktop defaulting to a tiny 800x600 resolution? TheUGREEN DisplayPort Dummy Plug (CM775)is the ultimate headless display emulator for servers, mining rigs, and remote workstations. By tricking your GPU into thinking a monitor is attached, it unlocks smooth1080p@60Hzfor fluid remote control, and supports up to4K@17Hzfor ultra-low resource background tasks. Featuring a durable aluminum alloy shell and plug-and-play design, it works instantly with Windows, macOS, and Linux.Sun Cheong Computer Co. Ltd.has over 20 years of IT expertise. Visit our Sham Shui Po store for instant pickup and expert technical advice!
Key Features
Key Features
- Hardware Acceleration Enabler: Tricks your GPU into activating, ensuring smooth, lag-free performance for remote desktop applications.
- Fluid 1080p@60Hz: Provides a standard, high-refresh-rate virtual workspace for comfortable and efficient remote PC management.
- Low-Resource 4K@17Hz: Purpose-built for mining rigs and background servers to keep the GPU awake without wasting computing power.
- 100% Plug-and-Play: Requires zero drivers, software installation, or external power—just plug it into a DisplayPort.
- Universal OS Compatibility: Works flawlessly out of the box with Windows, macOS, Linux, and specialized mining operating systems.
- Premium Aluminum Shell: The high-quality metal casing ensures excellent heat dissipation and long-lasting durability in hot server environments.
Full Product Description
Full Product Description
Unlock GPU Power for Headless Systems
Managing a computer without a physical monitor (a "headless" setup) often leads to frustrating software limitations. Operating systems and remote desktop applications (like AnyDesk, TeamViewer, or Chrome Remote Desktop) will default to a low, unchangeable resolution—or disable GPU hardware acceleration entirely—if they don't detect a connected screen. The UGREEN DisplayPort Dummy Plug instantly solves this by simulating a high-definition display, waking up your GPU and expanding your remote workspace.
Smooth 1080p@60Hz Remote Desktop
Don't compromise on workflow efficiency when working remotely. For standard remote desktop applications, this emulator provides a flawless 1080p at 60Hz resolution. This ensures your mouse movements and window dragging remain buttery smooth and lag-free, giving you the exact same experience as sitting right in front of the machine.
4K@17Hz: Purpose-Built for Low Resource Usage
Why 17Hz at 4K? It’s an intentional, highly efficient design for servers and cryptocurrency mining rigs! When running a headless server, you want your GPU to focus 100% of its computing power on actual tasks (like hashing or rendering), not wasting bandwidth generating a fake 60Hz 4K screen. The 4K@17Hz mode keeps the GPU fully active and prevents the system from sleeping, while utilizing virtually zero system resources.
💡 Pro Tip from Our Technicians
"If you are setting up a headless Mac Mini or a Windows server, you've likely encountered the dreaded 800x600 locked resolution. By plugging in this UGREEN DP Dummy Plug, you force the system to activate hardware acceleration. For the best remote control experience via TeamViewer or AnyDesk, we highly recommend setting your display settings to 1080p@60Hz. Need this fix right now to get your server running? Drop by our Sham Shui Po store! Our team at Sun Cheong Computer Co. Ltd. always keeps these in stock for instant pickup."
Technical Specifications
Technical Specifications
| Specification | Details |
|---|---|
| Brand | UGREEN |
| Model Number | CM775-55440 |
| Product Type | DisplayPort Dummy Plug / Headless Emulator |
| Optimal Resolution | 1080p @ 60Hz (For smooth remote desktop) |
| Max Resolution | 4K @ 17Hz (4:4:4/RGB) (Low-resource mode) |
| Interface | Standard DisplayPort (DP Male) |
| Shell Material | Premium Aluminum Alloy |
| Indicator | LED Work Status Light |
| Supported Operating Systems | Windows, macOS, Linux |
| Dimensions | 28.3 x 19.7 x 10.48 mm |
Delivery Options
Delivery Options
- Local delivery within Hong Kong and in-store pickup.
- Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
- Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
- Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
- In-store pickup details (location and time) will be confirmed by email or phone message.
- Delivery times are estimates and may be affected by weather or unforeseen circumstances.
FAQ Section
FAQ Section
- Why is the 4K resolution limited to 17Hz?This is a deliberate design for headless servers and cryptocurrency mining rigs. A dummy plug's job is to keep the GPU awake. Generating a 4K 60Hz virtual screen wastes valuable GPU processing power and bandwidth. By limiting 4K to 17Hz, your GPU stays active but dedicates 100% of its power to your actual workloads (like mining or rendering).
- How do I get a smooth 60Hz experience for remote working?Simply go into your operating system's display settings and change the resolution of the virtual monitor to 1080p (1920x1080). At 1080p, the dummy plug supports a smooth 60Hz refresh rate, which is perfect for lag-free remote desktop control via AnyDesk or TeamViewer.
- Do I need to install any drivers to use this on a Linux server?No, it is completely hardware-based. Whether you are using a Linux server, a Windows PC, or a Mac, the operating system will instantly recognize the UGREEN CM775 as a standard external monitor without any driver installation.
Target Users / Applications
Target Users / Applications
- Home Lab & Server Admins: Managing headless NAS setups, Proxmox servers, or Mac Minis remotely via AnyDesk or TeamViewer at a smooth 1080p@60Hz.
- Cryptocurrency Miners: Keeping GPUs active and preventing hash rate drops on multi-GPU mining rigs using the low-resource 4K@17Hz mode.
- Remote Video Editors: Forcing GPU hardware acceleration on remote rendering machines to ensure software functions properly over the network.
