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IOGEAR GCS1204 KVM switch
IOGEAR

IOGEAR GCS1204

Expert rating7 / 10

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Manufacturer: IOGEAR Last updated: September 11, 2026

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IOGEAR GCS1204 Review

The IOGEAR GCS1204 is a 4-port DisplayPort KVM switch with 4K@30Hz support, a 2-port USB 2.0 hub, and audio switching.

This switch fills the gap between IOGEAR's 2-port DisplayPort models and its pricier dual-view GCS1944, giving buyers four-computer switching on a single monitor without paying for dual-view they don't need. Sticking with USB 2.0 rather than 3.0 hub ports is the main cost-saving tradeoff here, fine for keyboards, mice, and basic peripherals but a bottleneck for external storage transfers. Versus the IOGEAR GCS1944, that adds dual-view and 4K@60Hz for a higher price, worth it for buyers needing two monitors. Versus the StarTech SV431DPU3A2, that adds USB 3.0 and rack-mount ears, worth it for server-room deployment.

Four Computers on a Single DisplayPort Monitor

This switch fills the gap between IOGEAR's 2-port DisplayPort models and its pricier dual-view GCS1944, giving buyers four-computer switching on a single monitor without paying for dual-view they don't need.

USB 2.0 Keeps the Price Reasonable

Sticking with USB 2.0 rather than 3.0 hub ports is the main cost-saving tradeoff here, fine for keyboards, mice, and basic peripherals but a bottleneck for external storage transfers.

Comparison to Alternatives

Versus the IOGEAR GCS1944, that adds dual-view and 4K@60Hz for a higher price, worth it for buyers needing two monitors. Versus the StarTech SV431DPU3A2, that adds USB 3.0 and rack-mount ears, worth it for server-room deployment.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7 / 10

A straightforward 4-port DisplayPort KVM switch for single-monitor desks that don't need USB 3.0 speeds.

Best for

  • Desks switching between four DisplayPort computers on a single monitor without needing USB 3.0.

Not for

  • Buyers needing dual-view or fast USB 3.0 peripheral transfers.

Specifications

What these specs mean
Capability Score
4.0/10

How much this switch can do compared with other desk KVM switches, rated from its specifications.

Identity

BrandIOGEAR
Model NumberGCS1204
Switching MethodFront-panel buttons, hotkeys

Topology

Computers Supported4 computers
Displays Per Computer1 displays
Total Video Inputs4
Total Video Outputs1
Video Path TypeSingle head
KVM SegmentDesk

Video & Features

Video StandardDVI-D dual-link
Max Resolution2560x1600
USB Hub Ports2
Audio SupportYes

Video interface

Video ConnectorDVI
Video Interface VersionDVI
DisplayPort Link RateNot applicable

Per display capability

Max Resolution Single Display2560x1600
Max Refresh At Max Resolution30 Hz at 2560x1600

USB peripheral switching

USB Switching SpeedUSB 2.0
Shared USB Ports2 ports

Switching control

Button SwitchingYes
Hotkey SwitchingYes

Audio

Analog Audio JacksYes

Physical and power

Rack MountableNo
External Power RequiredYes

In the box and price

Video Cables Included4 cables
Price210 USD

FAQs

What are the key specifications of the IOGEAR GCS1204 (USB DisplayPort / 4 Computers / 4K@30Hz / Audio)?

Key specs for the IOGEAR GCS1204: Shared USB Ports 2 ports, Max Resolution 2560x1600, Max Resolution Per Display 2560x1600, Connection Type Dual-link DVI, Audio Support Yes, Computers Supported 4 computers.

Who is the IOGEAR GCS1204 (USB DisplayPort / 4 Computers / 4K@30Hz / Audio) best suited to?

Best suited to: Desks switching between four DisplayPort computers on a single monitor without needing USB 3.0.

What are the drawbacks of the IOGEAR GCS1204 (USB DisplayPort / 4 Computers / 4K@30Hz / Audio)?

Not the best fit for: Buyers needing dual-view or fast USB 3.0 peripheral transfers.

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