Vertiv SC845DPH-400 Secure Desktop KVM Switch
Overview
The Vertiv SC845DPH-400 is a secure desktop KVM switch from the Cybex SC800 series, designed for environments where physical isolation between host computers is a non-negotiable security requirement. If you manage multiple workstations — air-gapped systems, classified networks, or separate security-domain machines on a single desk — the SC845DPH-400 consolidates control without creating a data path between hosts. That distinction matters: this is not a standard convenience KVM. The SC800 series is purpose-built for secure switching, and the SC845DPH-400 (often searched as SC845DPH 400) is the variant that brings dual-video-format console support — both HDMI and DisplayPort — alongside USB keyboard and mouse sharing, at resolutions up to 4K Ultra HD.
The KVM switch category covers a wide range of products, but the Cybex SC800 line sits in a distinct segment: government, defense, finance, and regulated enterprise environments where cross-contamination between network domains is an audit and compliance issue, not just an inconvenience. If that describes your deployment, this is where to start evaluating.
Key Features
- 4K Ultra HD Resolution at 60 Hz: The console supports up to 3840 × 2160 pixels at 60 Hz — true 4K UHD without the choppy 30 Hz refresh that earlier secure KVMs were limited to. For analysts working with high-density data visualizations or CAD users running across security domains, this eliminates the resolution compromise that used to come with secure switching.
- Dual Video Format Console — HDMI and DisplayPort: The console side provides both an HDMI output and a DisplayPort output, so you can connect a modern 4K monitor regardless of which interface your display uses. One DisplayPort and one HDMI console output are available simultaneously, giving you flexibility without an adapter chain.
- USB Keyboard and Mouse Sharing: Both keyboard and mouse connect via USB (Type-A hub ports on the console side, Type-B on the host side). Switching peripheral control between hosts happens at the KVM level, with no software agent required on the connected computers — relevant for air-gapped systems where installing software is restricted or prohibited.
- Headphone Output for Audio Consolidation: A 3.5 mm headphone output on the console means you can route audio from whichever active host you're working on without plugging and unplugging headphones. For operators who need to monitor audio alerts from secured systems, this eliminates a physical step during session switching.
- Status LED Indicators: Onboard status LEDs give you at-a-glance confirmation of the active port and switch state without requiring a software dashboard. In a secure environment where UI overlays and software agents are undesirable, hardware-level status indication is the right approach.
- AC-Powered Desktop Form Factor: The SC845DPH-400 is desktop-mounted (rack mounting is not supported), powered via AC, and finished in black. The non-rack form factor is deliberate for workstation deployments — it keeps the unit accessible on the desk rather than locked away in a rack enclosure.
- Broad Regulatory Certification: Certified to FCC Class A, CE, TÜV US, TÜV Canada, RCM, and VCCI — meaning this unit meets the electromagnetic and safety standards required for deployment in North American, European, Australian, and Japanese regulated environments. FCC Class A is the commercial/industrial designation; if you're in a consumer-only environment, note this is rated for commercial use.
Integration and Compatibility
The SC845DPH-400 is part of the broader Vertiv Cybex KVM line, which spans single-user desktop switches through enterprise-grade matrix systems. On the console side, you'll need a display with either HDMI or DisplayPort input capable of accepting a 4K@60 Hz signal — the switch can output at that resolution, but your monitor must match. USB Type-A peripheral devices (keyboard, mouse) connect on the console side; host computers connect via USB Type-B. The two USB 2.0 Type-A hub ports on the console support peripheral sharing across connected hosts.
Because this is a secure KVM switch, it is explicitly designed to prevent data transfer between hosts — there is no file-transfer mode, no clipboard sharing across ports, and no network bridge. That is the point. Integrators deploying in DoD, IC community, financial services, or healthcare environments where cross-domain data leakage is a compliance failure should verify this model's specific security certifications against their program requirements before procurement. The FCC Class A, CE, TÜV US/Canada, RCM, and VCCI certifications cover EMC and safety — check with Vertiv for any NIAP PP 4.0 or CSfC listing status specific to this SKU.
For a broader view of the KVM accessories and cabling needed to complete your installation — including DisplayPort and HDMI cables rated for 4K@60 Hz — verify cable specifications before assuming existing cables will carry the full bandwidth. Not all HDMI cables support 4K@60 Hz; HDMI 2.0 or higher is required at that resolution.
Frequently Asked Questions
Q: What video resolutions does the SC845DPH-400 support?
A: The SC845DPH-400 supports up to 4K Ultra HD (3840 × 2160 pixels) at 60 Hz on both its HDMI and DisplayPort console outputs.
Q: Does the SC845DPH-400 support rack mounting?
A: No. The SC845DPH-400 is a desktop form factor unit and does not support rack mounting. It is designed for workstation deployments.
Q: What peripheral types does the SC845DPH-400 support?
A: The SC845DPH-400 uses USB for both keyboard and mouse connections. The console side provides two USB 2.0 Type-A hub ports for peripherals; host computers connect via USB 2.0 Type-B ports. A 3.5 mm headphone output is also available on the console.
Q: What certifications does the SC845DPH-400 carry?
A: The unit is certified to FCC Class A, CE, TÜV US, TÜV Canada, RCM, and VCCI — covering North American, European, Australian, and Japanese commercial and regulatory requirements.
Q: Is the SC845DPH-400 a data-isolating secure KVM or a standard convenience switch?
A: The SC845DPH-400 is part of Vertiv's Cybex SC800 secure KVM series, which is purpose-built to prevent data paths between connected hosts. It does not support clipboard sharing or file transfer between ports. Verify NIAP listing status with Vertiv for program-specific compliance requirements.
Q: What power source does the SC845DPH-400 use?
A: The SC845DPH-400 is AC-powered. It does not draw power from a USB bus or PoE source.
The SC845DPH-400 sits in a specific niche that's easy to misidentify when speccing a project: this is not a KVM you buy because you want to switch between a gaming rig and a work laptop. The dual-format console — one DisplayPort output plus one HDMI output, both capable of 3840 × 2160 at 60 Hz — tells you exactly who this is for: operators who need to work across physically isolated hosts on a single high-resolution display without any data bridge between them.
Technical Highlights:
- 4K UHD at 60 Hz (3840 × 2160): Earlier secure KVMs were often capped at 1080p or 4K@30 Hz, which was a real pain point for analysts doing side-by-side document review or CAD work across domains. 60 Hz at full 4K removes that bottleneck — your display won't be the limiting factor.
- Dual Console Video Outputs (HDMI + DisplayPort): Having both output formats on the console side means you're not forced into an adapter to match your monitor. Adapters in a secure KVM chain introduce signal integrity risk and are often prohibited in classified environments — factory-native outputs matter here.
- FCC Class A + TÜV US/Canada + CE + RCM + VCCI: This certification stack covers commercial EMC in all five major regulatory jurisdictions. If your deployment spans facilities in North America, EU, Australia, and Japan, you won't need a separate SKU per region.
Deployment Considerations:
- The SC845DPH-400 is desktop-only — no rack ears, no 1U option. If your secure workstation environment uses rack-mounted consoles, you'll need a different model from the SC800 family. Plan physical placement before ordering.
- NIAP PP 4.0 compliance status is not confirmed in available evidence for this SKU. For programs with explicit NIAP listing requirements — DoD, IC, or any Federal contract with CDS (Cross Domain Solution) mandates — verify the current NIAP Product Compliant List against this exact model number before procurement.
The SC845DPH-400 is the right call for a secure analyst workstation where the operator needs a single 4K display to work across two or more physically isolated networks simultaneously — a pattern common in SOC environments running classified and unclassified feeds side by side on one desk.
