With its extra wide design, the Midi ExW is ideal when there is a need to run lots of samples (up to 200) just a short distance, for example when genotyping. This format, along with its compact footprint, offers rapid run times without compromising on power. The result is a system for high throughput sample processing generating crisp clear band data. As with all PerfectBlue™ gel systems, gels can be poured directly in the trays at temperatures up to 60 °C. With the Midi ExW, the trays can be walled with effective gasketed 'end gates' which are supplied in the system. Additionally, gel size can be reduced by using wall combs or the aluminium casting dam.

*Based on an agarose gel of approximately 5 mm thickness