YINGHUA 4K@60Hz 2x4 HDMI KVM Switch with 3.5mm Audio

Two-input four-output HDMI matrix

This 2×4 HDMI matrix routes signals from two sources to four displays simultaneously. It supports 4K resolution at 60 Hz and 1080p fallback for mixed-resolution setups. A 3.5 mm stereo jack and SPDIF output carry audio separately from the video path. The unit ships with an IR remote, power adapter and manual for immediate deployment.

Stable 4K60 throughput under continuous use

The switch maintains 4K@60Hz bandwidth across all four outputs without frame drops during extended sessions. Signal integrity holds when cycling between sources repeatedly, avoiding the handshake failures common in cheaper splitters. Audio extraction via 3.5 mm and SPDIF stays synchronised with video throughout long playback periods. No thermal throttling or signal degradation appears during sustained operation.

Desktop installation with IR remote control

Place the metal enclosure on a shelf, connect up to two HDMI sources and four displays, then attach the included power adapter. The IR remote switches inputs without cable reaching, though line-of-sight is required. Common issues include forgetting to power the unit before connecting sources, which prevents EDID negotiation, and using cables longer than five metres without active boosters, which can cause 4K60 dropouts. The 3.5 mm jack requires analogue speakers or an amplifier; it does not drive headphones directly.