Overview of the latest generation of commercially available microarrays for copy number variation (CNV) detection
| Microarray vendor | Catalogue whole genome array | Technology | Total number of copy number markers |
| Affymetrix | Cytogenetics Whole Genome 2.7M array | Single colour hybridisation, CNV and genotyping | 2 761 979 oligonucleotides, of which 400 103 are single nucleotide polymorphism (SNP) specific |
| Agilent | Human High-Resolution Discovery 1*1M | Two-colour hybridisation, CNV only | 963 331 oligonucleotides |
| Illumina | Human 1M-duo BeadChip | Single-colour hybridisation, CNV and genotyping | 1 199 187 oligonucleotides, majority SNP specific |
| NimbleGen | Human CGH 2.1M | Two-colour hybridisation, CNV only | 2 100 000 oligonucleotides |