| Revew | ATEN CS1844 4-Port USB 3.0 4K HDMI Dual Display KVMP SwitchThe ATEN CS1844 is a dual-display KVMP switch that controls four HDMI computers from a single USB keyboard, mouse and two HDMI monitors. It complies with the HDMI 2.0 standard and supports up to 4K DCI (4096 x 2160 @ 60Hz). ATEN Video DynaSync technology speeds up switching and makes sure windows opened on the extended desktop do not jump back to the main display. A built-in USB 3.1 Gen 1 hub (5Gbps) shares peripherals, and separate speaker and microphone jacks carry the audio of each computer. Two CS1844 units can be daisy-chained for a quad-display setup, and the included remote port selector switches computers with one press. The switch suits graphic design, video post-production, CGI and CAD engineering. 
Key features- Four computers, two displays - One USB keyboard, mouse and two HDMI monitors control four computers, with two HDMI cables per computer for dual display.
- 4K at 60Hz with HDMI 2.0 - Supports 4K DCI (4096 x 2160 @ 60Hz), 4K UHD (3840 x 2160 @ 60Hz) and 2560 x 1440 @ 144Hz, HDMI and HDCP compliant with HD audio.
- Video DynaSync - An exclusive ATEN technology that optimizes resolution, speeds up switching and keeps window positions on the extended desktop.
- Quad display with two units - Daisy-chain two CS1844 switches through the RJ-45 port to work with four monitors from one keyboard and mouse.
- Five selection methods - Pushbuttons, hotkeys, mouse, remote port selector and RS-232 commands. KVM, USB and audio focus can be switched independently.
- USB 3.1 Gen 1 hub - Two USB-A ports, front and rear, with up to 5Gbps, plus keyboard and mouse emulation and English, French, Japanese and German keyboard mapping.
Specifications| Manufacturer | ATEN | | Model | CS1844 | | Type | Dual-display KVMP switch (HDMI, USB 3.0, audio) | | Computer connections | 4 | | Displays | 2 (up to 4 with two daisy-chained units) | | Max resolution | 4096 x 2160 @ 60Hz, 2560 x 1440 @ 144Hz | | Compliance | HDMI 2.0, HDCP, HD Audio | | Console ports | 2 x USB-A, 2 x HDMI, 2 x 3.5 mm speaker jack, 2 x 3.5 mm microphone jack (front and rear) | | Computer ports | 8 x HDMI, 4 x USB 3.1 Gen 1 Type-B, 4 x 3.5 mm speaker jack, 4 x 3.5 mm microphone jack | | USB hub | 2 x USB 3.1 Gen 1 Type-A (5Gbps), front and rear | | Other ports | 1 x RJ-45 daisy chain, 1 x 2.5 mm remote port selector jack | | Port selection | Pushbuttons, hotkeys, mouse, remote port selector, RS-232 commands | | Scan interval | 1-99 seconds (default 5) | | Power consumption | DC 12V, 4.42W | | Operating temperature | 0-40°C | | Humidity | 0-80% RH, non-condensing | | Housing | Metal | | Dimensions | 33.5 x 16.05 x 4.4 cm | | Weight | 1.57 kg |
In the box- ATEN CS1844 switch
- 8 x HDMI 2.0 cable, 1.8 m
- 4 x USB 3.0 cable, 1.8 m
- 4 x speaker cable, 1.8 m
- 4 x microphone cable, 1.8 m
- Power adapter
- Remote port selector
- User instructions
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