Human1M DNA Analysis BeadChip contains more than one million single-nucleotide polymorphisms (SNPs). It targets an extensive catalog of known copy number variation (CNV) sites, and contains novel CNV content developed in collaboration with deCODE genetics and not currently available through any other array or public database. When used with BeadStudio integrated data analysis software, CNVs and SNPs can be analyzed simultaneously for a comprehensive view of DNA variation across the genome.