Black Box
Black Box ServSwitch Fiber KVM Extender II-SM
Best long-range KVM solution for secure, high-reliability industrial control rooms.
Extend your KVM console capabilities up to 10 kilometers with the Black Box ServSwitch Fiber KVM Extender II-SM. This professional-grade solution leverages single-mode fiber optics for reliable, high-quality digital signal transmission of video, keyboard, mouse, and audio. Ideal for critical control rooms and data centers, it ensures clear signals even in electromagnetically noisy environments. Supporting PS/2 peripherals and resolutions up to 1280x1024 @ 75 Hz, its robust aluminum case provides durability for demanding applications.
$5488.45
Owner Satisfaction
4.5
/ 5
Category Rank
630
/ 2577
#630 in Repeaters & Transceivers
Price vs Category Average
+459%
Above average
Transmission Distance
109125
/ Up to Km over /-µm single-mode fiber
Who it's for
- IT managers overseeing expansive corporate or industrial campus facilities
- Security professionals requiring interference-free and highly secure data transmission
- Visual designers needing pristine, artifact-free high-resolution display performance
Who should skip it
- Budget-conscious buyers seeking cost-effective alternatives to fiber-based hardware
- Teams lacking specialized fiber optic installation tools and technical expertise
- Network administrators requiring flexible, scalable IP-based KVM switching capabilities
Performance breakdown
Signal Range
Ten-kilometer reach provides exceptional flexibility for remote data center management.
Build Durability
Rugged aluminum housing withstands the rigors of demanding industrial control environments.
Interference Immunity
Fiber optic transmission eliminates signal degradation from electromagnetic noise.
Video Resolution
Legacy VGA support is reliable but lacks modern high-definition clarity.
Peripheral Compatibility
Reliance on PS/2 ports limits connectivity with modern USB-based peripherals.
Setup Complexity
Straightforward fiber connectivity simplifies deployment for professional IT infrastructure.
Key Specs
Transmission Distance
Up to 10 Km over 9/125-µm single-mode fiber
Max Resolution/Refresh
1280x1024 at 75 Hz
Video Support
VGA-compatible standards (DOS mode, VGA, XGA, SVGA, SXGA)
Power Supply
100 to 264VAC adapter (12 VDC, 2.5 amps)
Dimensions (LxWxH)
66 mm x 185 mm x 180 mm
Remote Unit I/O Ports
1 x SC female pair (optical), 2 x 6-pin mini-DIN female (K/M), 1 x HD15 female (monitor), 1 x 3.5-mm stereo audio jack
Power Consumption
Local unit 14W, Remote unit 12W
Connection Type
Duplex single-mode fiber (9/125 µm) for extension
Features
- Extends KVM signals up to 10 km over fiber
- Supports digital video, keyboard, mouse, and sound
- Reliable transmission in noisy environments
- Utilizes duplex single-mode fiber optics
- Supports PS/2 keyboard and mouse
- Delivers high-quality digital signal transmission
- Housed in a strong aluminum case
- Ideal for high-reliability applications
What customers say
Customers overwhelmingly praise this KVM extender for its exceptional reliability and stability, especially over long distances using single-mode fiber. The core focus is on its ability to deliver pristine, high-resolution video quality, which is essential for demanding control rooms and data centers. Users value the robust, industrial-grade construction, viewing it as necessary for continuous, twenty-four seven operation. While the initial investment is significant, the consensus is that this device is a top-tier, dependable piece of infrastructure. It is highly regarded as a benchmark solution for mission-critical KVM extension needs due to its consistent performance.
Know before you buy
This unit requires duplex single-mode fiber (9/125 µm) to achieve the full 10-kilometer extension distance.
No, this model is designed for VGA-compatible standards. It supports resolutions up to 1280x1024 at 75 Hz, making it best suited for legacy systems and specific industrial control environments.
Yes, because the system uses fiber optic cabling rather than copper, it is completely immune to electromagnetic and radio frequency interference, ensuring a clean signal in noisy data centers or factory floors.
No, this extender is designed for PS/2 keyboard and mouse connections. Please ensure your peripherals are compatible with the 6-pin mini-DIN ports provided on the remote unit.
The device features a 3.5mm stereo audio jack for analog sound transmission, allowing you to extend audio alongside your video and control signals.
Switching is handled via keyboard hotkeys, which allows you to toggle control between connected units without needing additional software or hardware buttons.
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$5488