Slackn's DMA - 4K DC505 Fuser

Information

• The DC505 is a high-performance dual-PC video fuser that combines the video output from your gaming PC and DMA PC into one seamless image on your primary monitor.
• Designed for extremely low and consistent latency with native-resolution fused video output.
• HDMI and DisplayPort cannot be mixed. Your gaming PC, DMA PC, and monitor must all use HDMI or all use DisplayPort.

Included

• 1x Slackn's DMA DC505 Fuser
• 1x 12V Power Adapter
• 3x Display Port Cables

System Requirements

• Both computers require compatible dedicated GPU video outputs.
• A CPU with at least 6 threads is recommended for the secondary DMA PC.
• Laptops are supported when they provide compatible HDMI 2.1 FRL or DisplayPort 1.4/2.1 video output.

Video Interfaces

• 3x HDMI 2.1 FRL ports with up to 48Gbps bandwidth
• 3x DisplayPort 1.4 ports with up to 32.4Gbps bandwidth
• Dedicated connections for the gaming PC, DMA PC, and primary monitor
• Supports standard and ultrawide monitors

1K HDMI Fuser vs 4K DC505 Fuser

HDMI 2.1 Performance

• 1920×1080 up to 550Hz
• 2560×1440 up to 360Hz
• 3840×2160 up to 160Hz
• Requires full-bandwidth HDMI 2.1 FRL 48Gbps connections on both computers and the monitor.
• Maximum refresh rates may require a compatible low-timing monitor, adjusted GPU timings, or a custom EDID.

DisplayPort Performance

• 1920×1080 up to 500Hz
• 2560×1440 up to 320Hz
• 3840×2160 up to 144Hz
• Compatible with DisplayPort 1.4 and DisplayPort 2.1 connections.
• A small number of monitors may be limited to 1080p 480Hz, 1440p 240Hz, or 4K 120Hz.

GPU Compatibility

• DisplayPort mode supports NVIDIA GTX 10-Series or newer and AMD RX 500-Series or newer GPUs.
• For HDMI 2.1 mode, an NVIDIA RTX 3060 or AMD RX 6500 XT-class GPU or newer is recommended.
• AMD RX 6000-Series and NVIDIA RTX 50-Series GPUs can support up to 1080p 550Hz, 1440p 360Hz, and 4K 160Hz with compatible hardware.
• NVIDIA RTX 30-Series and RTX 40-Series GPUs are generally limited to 1080p 480Hz, 1440p 320Hz, and 4K 144Hz due to DSC behavior.
• Some RTX 5070 Ti or higher GPUs and newer laptops may require the selectable 12G HDMI link mode.

Display Compatibility

• Supports 1080p, 1440p, and native 4K monitors.
• Supports ultrawide monitors, including 3440×1440.
• Refresh rates are backward-compatible with lower monitor refresh rates.
• Maximum performance depends on the monitor, GPU, cable bandwidth, display timings, EDID, and DSC behavior.

Integrated Capture Card

• Integrated USB video-capture functionality through the front USB-C Collect port.
• Selectable capture mode for the gaming PC signal or the final fused output.
• Compatible with OBS after installing the supplied Windows driver.
• Supports USB-C to USB 3.0 and USB-C to USB-C connections.

Adjustable Overlay Keying

• Adjustable chroma-key intensity from 5 to 255.
• Set the keying value to 0 to disable chroma keying.
• Overlay modes and keying intensity can be controlled directly from the front panel.

Compatibility Modes

• Mode A: Adaptive mode for the widest general compatibility.
• Mode B: Native display mode for alternative monitor and GPU compatibility.
• Mode ? Custom EDID injection mode.

Custom EDID Support

• Supports custom HDMI and DisplayPort EDID injection.
• Allows advanced monitor timings, refresh rates, and compatibility profiles to be stored directly on the device.
• Injected EDID profiles can be enabled using Mode C.

Front-Panel Controls

• View the current resolution, refresh rate, keying intensity, link rate, firmware build, EDID mode, activation status, and capture mode.
• Switch compatibility modes, link rates, overlay modes, display sources, and capture modes without software.
• Front status indicators show the monitor, gaming PC, DMA PC, and fusion connection status.

Firmware Updates

• Firmware can be updated through the dedicated rear USB-C service connection.
• The update process can be restarted after an interruption, power loss, or frozen update without permanently bricking the device.