The Midium

Erica Synths' description of the Erica Synths MIDI Thru Box

 Erica Synths midi thru box is professional quality, no latency, one midi In to 8 midi thru splitter in rigid aluminum case. It allows to connect up to 8 instruments to your sequencer or master keyboard and control them simultaneously without undesired delays and interference.

Technical specifications:

Latency 60ns – far below of limits of human perception, even subconscious
Power supply universal 220V/110V to 12VDC adapter supplied with a device
Mass 0.7 kg
Dimensions 185x140x55mm

Read the official owner's manual here.