Kramer VS-211X
The VS-211X is a two-in, one-out HDMI switcher that decides for itself. Feed it a Blu-ray player and a set-top box, or a room PC and a laptop plate, and it watches for an active video signal and switches to it on its own, following either a priority order or a last-connected rule that you set with the rear DIP switches. Press a front-panel button and manual selection overrides the automatic behavior. It passes 4K at 60Hz (4:4:4) with HDR10, along with up to 32 channels of uncompressed digital audio, so a surround feed survives the switch intact.
Kramer's I-EDIDPro EDID handling keeps sources and displays talking to each other through the switch, which is the difference between a laptop that wakes up on the right resolution and one that does not. The HDMI audio passing to the output is also de-embedded and converted to analog on a 3.5mm jack, so a pair of powered desktop speakers can run alongside the display's own. A 3-pin terminal block accepts remote contact-closure buttons for a wall plate or lectern. The unit is a fanless aluminum DigiTOOLS box powered from an external 5V supply; it sits on a table, and three of them fit side by side in a 1U rack space with the matching rack adapter.
| Inputs | 2 HDMI: On female HDMI connectors |
|---|---|
| Outputs | 1 HDMI (female connector); 1 unbalanced stereo audio (3.5mm mini jack) |
| Max Resolution | 4K@60 (4:4:4) |
| Max Data Rate | 17.82 Gbps (5.94 Gbps per graphic channel) |
| Compliance | HDR10 as specified in HDMI 2.0, HDCP 2.2 |
| Audio Switching | Up to 32 channels of uncompressed digital audio |
| Ports | Remote contact closure on a 3-pin terminal block |
| Controls | Input selection buttons; DIP switches for switching mode and EDID mode |
| Power | 5V DC, 2A source; 500mA consumption |
| Enclosure | DigiTOOLS, aluminum, convection cooled |










