What is the size of genomic DNA that is obtained with QIAGEN Genomic-tips?
FAQ ID -142

Genomic DNA purified using QIAGEN Genomic-tips ranges in size from 20–150 kb, with an average length of 50–100 kb. Vortexing the lysate for about 20 seconds may reduce the size of the genomic DNA slightly to 20–130 kb, but can help to improve flow rates.