EUROLITE SAP-512 MK2 is a USB lighting control interface and standalone playback unit for programming and controlling light shows. It stores sequences in 4 MB of internal memory and can transmit up to 512 DMX channels without a computer. The unit provides eight illuminated trigger buttons, scene navigation, speed and dimmer controls, real-time clock triggering, master/slave operation, automatic scene recovery, and USB connectivity to LED PC-Control 512.