User manual for the ATEN VM0404H 4×4 matrix HDMI switch, covering installation, operation, and specifications.
The ATEN VM0404H is a 4 × 4 matrix HDMI switch that lets you connect up to four HDMI source devices to four HDMI display devices. You can switch sources using the front‑panel buttons or the infrared remote, and the LED indicators show the active input.
The device includes a built‑in RS‑232 serial port for advanced control, supports HDMI resolutions up to 1080p, and complies with FCC, RoHS, and other regulatory standards. The manual provides system requirements, wiring recommendations, remote‑control commands, and detailed product specifications. This manual is written in Chinese.
| Maximum HDMI cable length | 20 m (24 AWG) / 15 m (28 AWG) |
|---|---|
| Power consumption | 5.3 V DC, 9 W (max) |
| Operating temperature | 0 °C – 50 °C |
| Storage temperature | -20 °C – 60 °C |
| Weight | 1.86 kg |
The unit consumes up to 9 W at 5.3 V DC.