4 Port 4K 60Hz HDMI Dual Display KVM w/ USB 3.0


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No. of Ports: 4-Port
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In addition, with the patented Video DynaSync™ technology, the CS1844 provides optimized display resolutions and accelerated switching between systems, while a built-in USB 3.1 Gen 1 hub delivers data transfer rates up to 5 Gbps. The CS1844 offers flexible switching options including pushbuttons, hotkeys, mouse port switching, a remote port selector, and RS-232 for quick and streamlined port selection.

The ATEN CS1844 Dual Display KVM Switch presents a valuable solution for desktop workstations with instant and effortless access to four HDMI capable computers from a single USB keyboard, mouse, and two HDMI monitors. The CS1844 is compliant with the HDMI 2.0 and HDCP 2.2 standards and supports superior video quality - up to 4K DCI (4096 x 2160 @ 60Hz) - for the most stunning, vivid video.

For environments with more than dual monitors, two CS1844s can be daisy-chained together, creating a triple or quad monitor setup for the ultimate, expansive desktop, multi-tasking experience.  

As a feature-rich KVM switch, the CS1844 is especially suitable for users who need to perform multiple tasks, smoothly in CGI work, graphic design, video post production, and CAD engineering applications.

In the box:

  • 1x CS1844 4-Port USB 3.0 4K HDMI Dual Display KVMP™ Switch
  • 8x HDMI 2.0 Cables
  • 4x USB 3.0 Cables
  • 4x Speaker Cables
  • 4x Microphone Cables
  • 1x Power Adapter
  • 1x Remote Port Selector
  • 1x User Instructions

ATEN CS1844 Rear View
ATEN's CS1844 Rear Connections

CS1844 Hot Key Sequence

Hotkey Mode
(Invoke Hotkeys)
Port SelectionInvoke OSD
Default: [Num Lock] + [-]Default: [Scroll Lock] [Scroll Lock] [Port #] [Enter]Default: None
Alternate: [Ctrl] + [F12]Alternate: [Ctrl] [Ctrl] [Port #] [Enter]Alternate: None

Features of the CS1842

  • One USB keyboard, mouse and two HDMI monitors control four HDMI computers and share two USB peripherals
  • Supports Quad Display by connecting two Dual Display KVM switches
  • Video DynaSync™ - an exclusive ATEN technology that eliminates boot-up display problems and optimizes the resolution when switching among different sources
  • Supports superior video quality - 4K UHD (3840 x 2160 @ 60Hz) and 4K DCI (4096 x 2160 @ 60Hz)
  • Computer selection via pushbuttons, hotkeys, mouse1, remote port selector, and RS-232 commands2
  • Built-in 2-port USB 3.1 Gen 1 hub with SuperSpeed 5 Gbps data transfer rates
  • Supports console keyboard emulation / bypass feature
  • Supports console mouse emulation / bypass feature
  • Independent switching of KVM, USB peripheral, and stereo audio focus3
  • Multilingual keyboard mapping - supports English, French, Japanese, and German keyboards
  • HDMI 2.0 compliant; HDCP 2.2 compliant
  • Supports HD audio3
  • Power on detection
  • Firmware upgradable

1. Mouse port switching is only supported under mouse emulation mode and by USB 3-key wheel mice.
2. Slide the DCC switch to the s position to allow the KVM switch to receive RS-232 commands via an RJ-45-to-DB-9 cable. Please refer to the CS1842 user manual.
3. HD audio through HDMI channel cannot be switched independently.

Aten 4-port 4K 60Hz HDMI KVM Application Diagram
Typical Application Diagram

 CS1844 Specifications:

Width13.9 in. (33.50 cm.)
Height1.73 in. (4.40 cm.)
Depth6.32 in. (16.05 cm.)
Weight3.52 lbs. (1.6 kgs.)
Computer Connections2
Port SelectionHotkey, Pushbutton, Mouse, RS-232 Commands, Remote Port Selector
Console Ports2 x USB Type A Female
2 x HDMI Female (Black)
2 x 3.5mm Audio Jack Female (Green;
1 x front, 1 x rear)
2 x 3.5mm Audio Jack Female (Pink;
1 x front, 1 x rear)
KVM Ports4 x USB3.1 Gen1 Type B Female (Blue)
8 x HDMI Female (Black)
4 x 3.5mm Audio Jack Female (Green)
4 x 3.5mm Audio Jack Female (Pink)
Power1 x DC Jack
USB Hub2 x USB 3.1 Gen1 Type A Female
(Blue; 1 x front; 1 x rear)
Daisy Chain Ports1 x RJ-45 Female
Remote Port Selector1 x 2.5mm Audio Jack Female
Selected5 x Pushbutton
Station Selection1 x Slide Switch
On Line /Selected5 (Orange)
Audio5 (Green)
USB5 (Green)
Video4096 x 2160 @ 60Hz
Scan Interval1-99 secs. (Default: 5 secs)
Power ConsumptionDC12V:3.17W:57BTU
Operating Temperature0-40C
Storage Temperature-20-60C
Humidity0-80% RH, Non-condensing
Physical Properties 
UPC / EAN Barcode icon
UPC 672792011825
EAN 0672792011825