6x 32x64 semi flexible panels, front panel output sent to the rear panel to mirror the display with a single cable.
Peak power is close to 10A @ 5V, so I have to use a pretty thick power cable not to starve amps on the 6th panel that starts going bad if things get too bright.
In case you wonder, it means the rear panel is one frame refresh behind the front one, but given that there are thousands (millions?) of refreshes per second due to PWM color mixing, the offset is impossible to see even if the panels are side by side.