Control 8 Servers from One 4K Console
The Raloy RSA-4K Series is a high-performance 8-port KVM switch designed for environments where reliable server management and high-resolution video are essential. Available with HDMI or DisplayPort KVM connectivity, the RSA-4K supports resolutions up to 3840 x 2160 at 60Hz while providing USB 2.0 peripheral sharing across connected computers.
With support for Windows, Linux, Unix, and Mac OS, the RSA-4K provides a flexible way to manage multiple servers from a single keyboard, monitor, and mouse. Front-panel buttons and keyboard hotkeys provide convenient port switching, while hot-plug support allows devices to be connected or disconnected without requiring additional software or drivers.
Video Interface Options
| Model | KVM Video | Server-Side Video | Local Console |
|---|---|---|---|
| RSA-4KHDMIKVM108 | HDMI + USB-B | HDMI 2.0 or DisplayPort | HDMI 2.0 |
| RSA-4KDPKVM108 | DisplayPort + USB-B | DisplayPort | DisplayPort |
Both models provide 8 KVM ports, 4K UHD video support, and two USB 2.0 hub ports.
4K Video for High-Resolution Server Management
The RSA-4K supports up to 3840 x 2160 at 60Hz for 16:9 displays. It also supports 1920 x 1200 at 60Hz for 16:10 displays and 1600 x 1200 at 60Hz for 4:3 displays.
This makes it well suited for modern servers, workstations, and high-resolution rack environments where clear text, detailed graphics, and accurate video reproduction are important.
4K UHD | 60Hz | 8 Ports | HDMI or DisplayPort
Features
- 8-port KVM switching for managing up to eight connected computers or servers from one console
- 4K UHD video up to 3840 x 2160 at 60Hz
- HDMI or DisplayPort models to accommodate different server and console environments
- Two USB 2.0 hub ports for sharing peripherals between connected computers
- Front-panel port selection for convenient local control
- Keyboard hotkeys for fast port switching
- Hot-pluggable design for connecting and disconnecting devices without shutting down the KVM
- Multi-platform support for Windows, Linux, Unix, and Mac OS
- 1U rackmount form factor for efficient installation in standard equipment racks
- Auto-sensing 100 to 240VAC power for worldwide power compatibility
- TAA compliant for applications requiring Trade Agreements Act compliance
Benefits
- Manage multiple servers from one workstation to reduce the number of keyboards, mice, and monitors required.
- Maintain 4K image quality for detailed server management and high-resolution applications.
- Simplify peripheral sharing by connecting USB 2.0 devices directly to the KVM.
- Save valuable rack and workspace space with a compact 1U design.
- Speed up server access using front-panel buttons or keyboard hotkeys.
- Support mixed operating systems without requiring platform-specific software.
- Simplify installation with a hot-pluggable, driver-free design.
- Choose the video interface that fits your infrastructure with HDMI and DisplayPort versions.
USB Peripheral Sharing
Two integrated USB 2.0 hub ports allow peripherals to be shared among connected computers.
Use the hub ports for devices such as:
- USB storage devices
- CAC readers
- Printers
- Other USB 2.0 peripherals
- Bootable ISO media
The shared USB ports provide additional functionality beyond basic keyboard and mouse control, making the RSA-4K useful for server provisioning, maintenance, troubleshooting, and administrative tasks.
4K Resolution Support
| Aspect Ratio | Maximum Resolution | Refresh Rate |
|---|---|---|
| 16:9 | 3840 × 2160 | 60Hz |
| 16:10 | 1920 × 1200 | 60Hz |
| 4:3 | 1600 × 1200 | 60Hz |
Both the server-side KVM connections and local console support the listed resolutions.
KVM Cable Compatibility
The RSA-4K uses dedicated Raloy KVM cables, sold separately.
RSA-4KHDMIKVM108
Compatible cables include:
- RCK-6H: HDMI + USB-B to HDMI + USB-A
- RCK-6P: HDMI + USB-B to DisplayPort + USB-A
RSA-4KDPKVM108
- RCK-6DP: DisplayPort + USB-B to DisplayPort + USB-A
This cable flexibility makes it possible to accommodate different server-side video connections without replacing the KVM switch.
Technical Specifications
| Specification | RSA-4KHDMIKVM108 | RSA-4KDPKVM108 |
|---|---|---|
| KVM Ports | 8 | 8 |
| Form Factor | 1U Rackmount | 1U Rackmount |
| Chassis | Steel | Steel |
| Chassis Color | Dark | Dark |
| Dimensions | 17.4″ W × 6.7″ D × 1.73″ H | 17.4″ W × 6.7″ D × 1.73″ H |
| Net Weight | 5.7 lb. | 5.7 lb. |
| Specification | RSA-4KHDMIKVM108 | RSA-4KDPKVM108 |
|---|---|---|
| KVM Port | HDMI / USB-B | DisplayPort / USB-B |
| Server-Side Video | HDMI 2.0 or DisplayPort | DisplayPort |
| Local Console Video | HDMI 2.0 | DisplayPort |
| Maximum Video Resolution | 3840 × 2160 @ 60Hz | 3840 × 2160 @ 60Hz |
| Local Keyboard/Mouse | 2 × USB-A | 2 × USB-A |
| USB Hub | 2 × USB-A, USB 2.0 | 2 × USB-A, USB 2.0 |
| Specification | Details |
|---|---|
| Port Switching | Front-panel buttons and keyboard hotkeys |
| Cascade / Daisy Chain | Not supported |
| Operating Systems | Windows, Linux, Unix, Mac OS |
| Hot Plug | Yes |
| Software / Drivers | Not required |
| Specification | Details |
|---|---|
| Operating Temperature | 32 to 131°F / 0 to 55°C |
| Storage Temperature | -4 to 140°F / -20 to 60°C |
| Relative Humidity | 5 to 90%, non-condensing |
| Shock | 10G acceleration, 11ms duration |
| Vibration | 10 to 300Hz, 0.5G RMS random vibration |
| Power Input | 100 to 240VAC, 50/60Hz |
| Maximum Consumption | 10W |
| EMC | FCC & CE |
| Safety | CE / LVD & UKCA |
| Environmental | REACH & RoHS3 / WEEE |
Why Choose the RSA-4K?
8 Servers. One Console. 4K Resolution.
The RSA-4K combines high-resolution video, flexible USB connectivity, and straightforward KVM switching in a compact 1U rackmount chassis. With HDMI and DisplayPort versions available, it provides an adaptable solution for modern server environments where both screen quality and efficient server access matter.
How the RSA-4K Works
Up to 8 Servers
↓
RSA-4K KVM Switch
↓
One Local 4K Console
Monitor + Keyboard + Mouse
USB 2.0 peripherals can also be shared between connected computers through the two integrated USB hub ports.
Recommended Uses:
Server Rooms & Data Centers • Enterprise IT Infrastructure • Network Operations Centers • Server Administration • Rackmount Workstations • High-Resolution Computing Environments • IT Labs & Test Environments • Secure Server Management • Server Provisioning & Maintenance • Multi-Server Workstations
Frequently Asked Questions
The RSA-4K provides 8 KVM ports, allowing one local console to control up to eight connected servers or computers.
Yes. The RSA-4K supports resolutions up to 3840 × 2160 at 60Hz for 16:9 displays.
Yes. The family includes the RSA-4KHDMIKVM108 HDMI model and RSA-4KDPKVM108 DisplayPort model.
Yes. Two integrated USB 2.0 hub ports allow USB peripherals to be shared between connected computers.
No. The RSA-4K is designed for hot-pluggable operation without additional software or drivers.
Yes. The RSA-4K uses a 1U rackmount form factor and measures 17.4″ wide by 6.7″ deep.
The KVM cables are sold separately. The HDMI model supports Raloy RCK-6H and RCK-6P cables, while the DisplayPort model uses the RCK-6DP cable.