ATEN VS4841 4-Port True 4K HDMI Switch
The ATEN VS4841 is a compact four-port HDMI switch engineered to deliver uncompromised True 4K signals — 3840x2160 at 60Hz with full 4:4:4 chroma sampling — to a single display. If you've been stuck with switches that quietly downscale to 4:2:0 or drop to 30Hz the moment you push 4K, this is the spec that matters. The VS4841 holds full color depth at the full frame rate, making it a practical pick for control rooms, digital signage backbones, and AV-over-IP edge nodes where signal fidelity is non-negotiable.
Key Features
- True 4K @ 60Hz, 4:4:4 Chroma: The VS4841 passes 3840x2160 at 60 frames per second with no chroma subsampling — every pixel delivered at full color fidelity. For medical imaging displays, color-critical design workstations, or high-frame-rate signage, 4:2:0 shortcuts are a problem; 4:4:4 eliminates that tradeoff entirely.
- 3-Meter Signal Distance: Rated for cable runs up to 3m at full 4K60 4:4:4 — appropriate for most rack-and-display setups where the switch sits close to the output device. Plan your rack position accordingly; longer cable runs at full bandwidth require premium HDMI cabling or active cables.
- Single HDMI Type A Output: One female HDMI Type A output routes the active source to the connected display or capture device. Clean, deterministic signal path — no splitter artifacts, no downstream device guessing which source is active.
- IR Receiver for Remote Source Switching: The onboard IR receiver lets operators switch inputs without touching the unit. In a rack or behind a panel where physical access is inconvenient, IR control keeps source selection accessible from the room. Pair with any compatible IR remote.
- USB-C Bus Power (5V/1A): The VS4841 draws power from a standard USB-C port at 5V/1A — well within any modern PC, monitor, or USB wall adapter's output. No proprietary power brick, no separate AC adapter required. The included 1-meter USB Type-C to Type-A cable handles the connection.
- 0–80% Non-Condensing Humidity Tolerance: Cleared for typical indoor commercial and industrial environments. Not rated for outdoor or high-condensation spaces, but covers server rooms, AV racks, and enclosed control consoles without issue.
Integration and Compatibility
The VS4841 is designed to slot into any HDMI-based AV or security display infrastructure. The HDMI Type A output is compatible with standard commercial displays, video walls, NVR monitor outputs, and capture cards. USB-C bus power simplifies integration in rack environments where AC outlet density is limited — draw power from a nearby USB port on a KVM, NVR, or PC rather than adding another power strip entry. The IR receiver enables source switching without front-panel access, which is relevant for locked AV racks, under-desk installations, and display enclosures. For enterprise deployments with strict AV signal management requirements, the 4:4:4 color fidelity also ensures downstream image processing (color correction, analytics overlays) receives unmodified signal data. The VS4841 is part of the broader ATEN AV switching and KVM product line, which spans single-display switches through large-matrix HDMI switches and KVM extenders. If your deployment requires signal distribution to multiple displays simultaneously, evaluate ATEN's splitter or matrix routing products in the same family rather than a single-output switch.
Frequently Asked Questions
Q: Does the VS4841 support 4K at 60Hz with full 4:4:4 chroma, or does it downsample?
A: The VS4841 is rated for 3840x2160 @ 60Hz at 4:4:4 — full chroma, no subsampling. This is the maximum supported resolution and color depth per the manufacturer specification.
Q: How is the VS4841 powered?
A: It draws power via USB-C at 5V/1A. A 1-meter USB Type-C to Type-A cable is included. Any USB-A port or USB wall adapter capable of 5V/1A will work — no dedicated power supply required.
Q: What is the maximum cable distance for the VS4841 at 4K resolution?
A: The rated maximum distance is 3 meters at 3840x2160 @ 60Hz (4:4:4). Longer runs at full 4K bandwidth may require premium or active HDMI cables beyond that distance.
Q: Does the VS4841 include an IR remote, or only the receiver?
A: The VS4841 includes one IR receiver. Verify IR remote compatibility with ATEN's accessory documentation — a remote is not confirmed as included in the base unit specifications.
Q: Is the VS4841 suitable for rack mounting?
A: The VS4841 is noted as a rack-mount-compatible product. For standard physical dimensions in rack deployments, ATEN uses an LxWxH format rather than the conventional WxDxH — confirm measurements against your rack bay before installation.
The spec most integrators overlook on HDMI switches is chroma subsampling — the VS4841 is explicitly rated at 4:4:4 at 3840x2160 @ 60Hz, which means you're not silently degrading color fidelity when you push it hard. That matters in control room deployments where operators are looking at color-coded alarm states or analytics overlays on a single shared display.
Technical Highlights:
- 4K60 4:4:4 Signal Integrity: Full 3840x2160 at 60Hz with 4:4:4 chroma — no subsampling penalty on high-frame-rate or color-critical sources.
- USB-C 5V/1A Bus Power: Draws under 5W from any USB-A or USB-C port; eliminates one AC adapter from the rack power budget and includes the 1-meter Type-C to Type-A cable.
- IR Receiver Integration: Onboard IR input enables source switching without physical front-panel access — practical for locked racks or display enclosures where hands-on switching isn't an option.
Deployment Considerations:
- Cable distance is rated to 3m at full 4K60 4:4:4 — position the switch close to the display or plan for active HDMI cables if your rack-to-display run exceeds that.
- Humidity tolerance tops out at 80% non-condensing; not rated for high-moisture environments like loading docks or exterior-facing kiosks without additional enclosure protection.
The VS4841 is the right fit for a compact control room workstation or a rack-mounted AV node where a single operator display needs clean, full-bandwidth 4K source selection with IR-accessible switching and no dedicated power supply overhead.
