Duck's DMA - 4K DC686 Fuser

Basic Information

• Model: DC1A686-D3ZC
• Color Options: Gold, Red, and Silver.

Signal & Interface Specifications

• Hardware Interfaces: Three full-bandwidth DisplayPort 1.4 high-speed transmission interfaces.
• Supported Protocols and Technologies: DLSS, DDC, HPD, EDID, HDCP, MST, FEC, and the full suite of low-level AUX protocols, as listed by the manufacturer.
• Supports native EDID automatic passthrough.
• Color Modes: RGB and YCbCr.
• Color Bit Depth: 8-bit, 10-bit, and 12-bit.

Resolution & Refresh Rate

Resolution	Supported Refresh Rate
1280 × 720P	1350Hz+
1920 × 1080P	1–639Hz
2560 × 1440P	1–364Hz
3440 × 1440P	1–264Hz
3840 × 2160P	1–164Hz

Hardware Architecture & Transmission Capability

• Next-generation hardware-level signal interconnection architecture enables complete, direct signal communication between the computer and display.
• Full-bandwidth operation across the entire system supports lossless image output at ultra-high refresh rates across multiple resolutions.
• Supports real-time switching between two host computers, with both scenarios operating independently without interference.
• Designed for stable, reliable operation during extended high-load use.

Compatibility & Application Scenarios

• The manufacturer reports testing with 62 display models from different brands, with compatibility across refresh rates within the supported bandwidth range and a claimed overall display compatibility rate of 99%.
• Deep optimization and tuning of low-level protocols reduces compatibility requirements, allowing both high- and low-spec host systems to operate stably at high refresh rates.
• Application Scenarios: PC office use, multi-display expansion for esports and gaming, cameras, projectors, microscopy equipment, medical instruments, and other professional display equipment.

Flagship Exclusive Features

• Native EDID Automatic Passthrough: Fast, stable protocol handshaking helps prevent abnormal communication errors.
• One-Click Display Information Customization: Customize the display serial number and hardware ID with permanent memory storage, allowing new display device information to be generated quickly.
• Mixed-Resolution Dual-Device Output: Supports simultaneous output from primary and secondary devices at different resolutions, including stable 2K 360Hz + 1K 360Hz operation.
• Intelligent Resolution Scaling: Allows a 2K high-refresh-rate display to support 1K ultra-high-refresh output specifications.
• One-Touch Dual-Host Switching: Instantly switches between two host displays for seamless transitions between office and entertainment use.
• Capture Card Live Streaming: The Flagship Version supports live streaming with a capture card.

Firmware Upgrade Capability

• Built-in official serial-port upgrade interface supports long-term firmware updates and iteration.
• Firmware upgrades can unlock expanded 5120 × 1440P ultra-high-resolution support.
• Future updates can optimize hardware performance and add new functions, helping maintain the device's long-term value.

Frequently asked questions

When will my pre-order ship?

Shipment is expected to become available around October 5th; this is an estimated shipment availability date, not a delivery date.

Which version is available?

The Flagship Version of the DC1A686-D3ZC is open for pre-order. Deluxe and Standard versions are not yet available.

Which colors can I choose?

The color range includes DICHEN Gold, Patriot Red, Loyal Silver, Sincere White, and Rock Black. Sincere White and Rock Black are currently out of stock.

What video interfaces does it use?

The DC1A686-D3ZC has three full-bandwidth DisplayPort 1.4 high-speed transmission interfaces.

What resolutions and refresh rates are supported?

The listed ranges are 720P at 1–1000Hz+ with a theoretical peak of 1350Hz+, 1080P at 1–639Hz, 1440P at 1–364Hz, 3440 × 1440P at 1–264Hz, and 4K at 1–164Hz.

Can both devices use different resolutions?

Yes. The Flagship Version supports mixed-resolution dual-device output, including stable 2K 360Hz + 1K 360Hz operation.

Does it support EDID passthrough and display information customization?

Yes. Native EDID automatic passthrough is supported, along with one-click customization of the display serial number and hardware ID with permanent memory storage.

Can I switch between two host computers?

Yes. One-touch dual-host switching supports quick transitions between the two hosts.

Does it support live streaming?

The Flagship Version supports live streaming with a capture card.

Is 5120 × 1440P supported?

The manufacturer lists 5120 × 1440P as expanded support that can be unlocked through firmware upgrades. It is not listed in the current resolution and refresh-rate table.

Can the firmware be updated?

Yes. The built-in official serial-port upgrade interface supports long-term firmware updates for expanded resolution support, performance optimization, and new functions.