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For PCR-free library construction, a minimum input of 100 ng of dsDNA is required for all xGen DNA Library Prep Kits.
For PCR-amplified library construction, xGen DNA Library Prep EZ and EZ UNI Kits supports dsDNA input range of 100 pg to 1 µg; while the xGen DNA Library Prep MC and MC UNI Kits support a dsDNA input range of 1 ng to µg.