Description
The CS1144D4 is a secure 4-port USB DVI dual-display KVM switch designed to share a single keyboard, mouse, monitor and speaker between multiple classified computer systems. It enforces strict isolation and unidirectional data flow to prevent data leakage when switching between connected systems. The unit is certified to PSD PP v4.0 by NIAP and is engineered for environments that require accredited peripheral sharing controls.
This KVM provides layered security controls including always-on chassis intrusion detection that renders the unit inoperable upon tampering, tamper-evident labels, and non-reprogrammable firmware to block unauthorized modifications. Administrative device filtration restricts USB HID devices and limits peripheral connectivity to approved devices only. Port switching is manual only via front panel pushbuttons or an optional Remote Port Selector to eliminate remote or software-based switching risks.
Video performance supports dual-display DVI output up to 3840 x 2160 at 30 Hz on compatible HDMI-interfaced monitors using ATEN DVI-to-HDMI KVM cables and supports DVI dual-link and single-link resolutions. Audio is strictly filtered and limited to analog speaker output to reduce side-channel risks. Keyboard and mouse input data are purged automatically after transmission and when focus is switched to preserve user data protection.
Connectivity includes two console DVI-I dual-link connectors, two USB Type-A console ports, a front-panel mini stereo jack for speakers, four USB Type-B computer ports, eight DVI-I computer ports and four computer mini stereo jacks. Rear RJ-11 is provided for the Remote Port Selector interface and a 3-prong AC socket supplies power. LED indicators provide status for power, selected ports, video and key lock filtered states for easy on-desk monitoring.
The CS1144D4 is intended for use in sensitive installations such as defense, intelligence, banking, healthcare and other regulated environments that operate multiple security domains from a single secure console. Its certification to PSD PP v4.0 makes it suitable where formal NIAP protections are required. The manual-only switching model reduces attack surface compared to networked or automatic switching solutions.
Installation is straightforward with a rugged metal enclosure and standard connectors for DVI and USB peripherals. The switch operates from 100-240VAC and fits on a desktop or in secure racks where physical security labels and tamper detection can be monitored. LED indicators and the Remote Port Selector option simplify day-to-day operation while preserving mandatory security constraints.
In summary, the CS1144D4 combines certified PSD PP v4.0 security controls, unidirectional data flow, strict peripheral filtering and dual-display DVI support to deliver a hardened KVM solution. It is produced in Taiwan and built for secure deployments that demand audited switching, hardware tamper protections and predictable video and audio behavior. The design balances secure operation with a simple, administrable interface for controlled desktop access.
