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Rectangular metal box with DVI and USB ports on the rear panel

ATEN

ATEN CS1784A 4-Port Dual-Link DVI KVM Switch

SKU CH-VQV8-DTCS8 MPN CS1784A

Controls four computers from one Dual-Link DVI console with USB 2.0 hub and audio switching up to 2560×1600 resolution

  • Console portsKeyboard: 1x USB Type A Female (Rear Panel) Monitor: 1x DVI-
  • Computer ports4 Ports
  • Supported video resolutionDVI-D( Dual Link): 2560 × 1600 DVI-D(Single Link): 1920 × 12
  • Temperature rangeOperation Temperature: 32 to 122 °F (0 to 50C) Storage Tempe
  • Humidity range0 to 80% RH, Non-condensing
  • Product typeUSB
  • Control four computers from one console with a single keyboard, monitor and mouse
  • Drive dual-link DVI displays at 2560×1600@60Hz for crisp, high-resolution output
  • Built-in two-port USB 2.0 hub shares peripherals across all connected systems
  • Switch KVM focus and USB/audio channels independently for flexible workflow
  • Operates reliably from 0°C to 50°C in non-condensing humidity up to 80% RH

Four-Port DVI KVM Switch

The ATEN CS1784A lets one keyboard, mouse and monitor control four computers through dual-link DVI connections. It is built for administrators, developers or multi-system workstations that need reliable switching without software overhead. A built-in two-port USB 2.0 hub handles shared peripherals such as drives or printers. Independent asynchronous switching keeps keyboard, video, mouse and audio paths separate when required.

Dual-Link Resolution Limits

Dual-link DVI supports 2560x1600 at 60 Hz while single-link DVI tops out at 1920x1200 at 60 Hz. The unit operates from 0 to 50 °C with humidity up to 80 % non-condensing. Cables included are DVI-D to DVI-D with USB, so analog VGA sources cannot be connected without an active adapter. Audio switching covers 2.1 channel output for basic multimedia monitoring.

Upgrade From Two-Port Or Analog KVMs

Moving from a two-port switch adds two extra computer paths without extra desk hardware. Replacing an analog VGA KVM gains digital clarity at 2560x1600 and removes signal degradation on long cables. The jump is worth it when four digital sources must share one high-resolution display and USB peripherals. Buyers who need DisplayPort, HDMI or more than four ports will need a different platform.

How it compares

Measured against everything we stock in KVM Switches & Rack Consoles, at today’s prices. Recalculated every night.

Price $325.99
Pricier than about 86% of the 4,010 comparable items (median $105.49).

Specifications

Product
Brand nameATEN
Model nameCS1784A
Product typeUSB
Display
Supported video resolutionDVI-D( Dual Link): 2560 × 1600
DVI-D(Single Link): 1920 × 1200
Ports & slots
Console portsKeyboard: 1x USB Type A Female (Rear Panel)
Monitor: 1x DVI-I Female (Rear Panel)
Mouse: 1x USB Type A Female (Rear Panel)
Computer ports4 Ports
Size & build
Product dimensions2 × 10.6 × 3.4 in
Product weight2.2 lb (1 kg)
Shipping weight3.18 kg
Package size333 × 221 × 23 mm
In the box
In the box1x CS1784A USB DVI Dual Link KVMP Switch
4x DVI-D/USB KVM cables
1x Power Adapter
1x User Manual
1x Quick Start Guide
Environment & compliance
Temperature rangeOperation Temperature: 32 to 122 °F (0 to 50C)
Storage Temperature: -4 to 140F (-20 to 60C)
Humidity range0 to 80% RH, Non-condensing

Questions about this item

How many computers can I connect to this KVM switch?

The CS1784A supports up to four computer connections, letting you control all four from a single keyboard, monitor and mouse.

What resolution will I actually get on a dual-link DVI monitor?

Dual-link DVI delivers 2560x1600 at 60 Hz, while single-link DVI is limited to 1920x1200 at 60 Hz.

Does the built-in USB 2.0 hub share bandwidth with the KVM switching?

The two-port USB 2.0 hub operates independently, so peripheral switching is asynchronous and does not interrupt the KVM session.

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