N3 cartridge is High Sensitivity Kilobase Cartridge. It has a detection limit of 20 pg/μl in low concentration large-sized DNA. Same as S3 Kilobase Cartridge, it can identify 5~165kb large-sized DNA and apply to integrity test of genomic DNA, and quality check of plasmid DNA and long-read NGS library, supporting second and third generation sequencing and most QC procedures.