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Manufacturer: IOGEAR Last updated: 2026-09-12
IOGEAR GCS1904 (4-Port DisplayPort KVMP Switch / USB 3.0 Hub / TAA Compliant / $299.95) Review
The GCS1904 is IOGEAR's DisplayPort-native 4-port KVMP switch, pairing four-machine switching with a USB 3.0 hub for buyers who specifically need DisplayPort rather than HDMI and don't want to compromise on peripheral speed.
DisplayPort's native multi-stream and higher-bandwidth signaling make it the preferred connection for a lot of professional and workstation monitor setups, and the GCS1904 targets exactly that audience rather than the gaming-console-adjacent crowd HDMI switches often serve. TAA compliance opens it up to government and federal procurement channels the same way the GCMS1922 does. At $299.95, it sits below IOGEAR's 8K-capable CS1924A while still delivering genuine DisplayPort switching and fast USB 3.0 peripheral sharing across all four ports.
DisplayPort-Native for Workstation Monitors
Buyers with DisplayPort-only monitors avoid adapters entirely, and DisplayPort's higher native bandwidth suits professional multi-monitor workstation setups better than an HDMI-based switch.
USB 3.0 Across All Four Ports
Fast peripheral sharing isn't limited to a subset of ports here, all four computers get full USB 3.0 hub access, useful for anyone moving external drives or capture devices between machines.
Comparison to Alternatives
Against IOGEAR's own GCS1904H, the H variant trades DisplayPort and USB 3.0 for HDMI and USB 2.0 at a lower price, the GCS1904 is the pick when DisplayPort and peripheral speed both matter. Against the CS1924A, also IOGEAR, the CS1924A pushes to 8K resolution at a higher price, the GCS1904 is the more cost-effective DisplayPort option for buyers who don't need that ceiling.
Specifications
Design
| Port Count | 4 |
|---|---|
| Switching Method | Push-button / hotkey |
Video & Features
| Video Standard | DisplayPort |
|---|---|
| Max Resolution | DisplayPort native (4K-class) |
| USB Hub Ports | 3 |
| Audio Support | Yes |
In the box and price
| Price | 299.95 USD |
|---|
| Brand | IOGEAR |
|---|---|
| Model | GCS1904 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8 / 10
A solid DisplayPort-native 4-port KVMP switch with full USB 3.0 sharing and TAA compliance for procurement buyers.
Best for
- DisplayPort-native workstation setups managing four computers.
- IT buyers needing TAA-compliant 4-port KVM hardware.
Not for
- HDMI-only setups, IOGEAR's GCS1904H avoids the adapter requirement at a lower price.
- Buyers needing 8K resolution support, the CS1924A covers that ceiling.
FAQs
What are the key specifications of the IOGEAR GCS1904 (4-Port DisplayPort KVMP Switch / USB 3.0 Hub / TAA Compliant / $299.95)?
The IOGEAR GCS1904 (4-Port DisplayPort KVMP Switch / USB 3.0 Hub / TAA Compliant / $299.95) is a KVM switch from IOGEAR. Key specs: Video Standard DisplayPort, Port Count 4, Max Resolution DisplayPort native (4K-class), USB Hub Ports USB 3.0, Audio Support true.
Who is the IOGEAR GCS1904 (4-Port DisplayPort KVMP Switch / USB 3.0 Hub / TAA Compliant / $299.95) best suited to?
It suits displayport-native workstation setups managing four computers., it buyers needing taa-compliant 4-port kvm hardware..
What are the drawbacks of the IOGEAR GCS1904 (4-Port DisplayPort KVMP Switch / USB 3.0 Hub / TAA Compliant / $299.95)?
It is a poor fit for hdmi-only setups, iogear's gcs1904h avoids the adapter requirement at a lower price., buyers needing 8k resolution support, the cs1924a covers that ceiling..
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