Model: TP-121XL
from $336
The Kramer TP-121XL is a compact computer video and stereo audio transmitter designed to extend signals over twisted pair cabling. It accepts one UXGA video input on a 15-pin HD connector and one 3.5mm mini-jack for unbalanced stereo audio, outputting to a single RJ-45 connector for transmission. This device supports resolutions up to WUXGA and 1080p, extending signals over 820 feet (250 meters) using CAT 5 UTP or STP cable, making it ideal for long-distance transmission of high-quality video and audio in various professional settings.
Matching your monitor's resolution and refresh rate capabilities with the KVM is crucial, as many budget switches cap out at 4K 30Hz or 1080p. Ensure it supports the exact number of monitors and computers you need. Available from $336.
KVM switches require very little electricity and have no consumables. Ownership costs are effectively zero beyond the initial purchase and required cabling.
Common Failure Modes
Port failure or signal degradation over time are the main issues. Active electronic components can sometimes fail, causing blinking displays or dropped USB connections.
Matching your monitor's resolution and refresh rate capabilities with the KVM is crucial, as many budget switches cap out at 4K 30Hz or 1080p. Ensure it supports the exact number of monitors and computers you need.
KVM switches are solid-state and extremely durable. They are usually replaced only when users upgrade to higher resolution monitors that the KVM cannot support.
The Kramer TP-121XL Computer Video & Stereo Audio over Twisted Pair Transmitter is available at bhphoto, starting at $336.
KVM switches require very little electricity and have no consumables. Ownership costs are effectively zero beyond the initial purchase and required cabling.
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