Thermo Scientific Maxima H Minus First Strand cDNA Synthesis Kit is a complete system for highly efficient synthesis of first strand cDNA. The kit uses the Maxima H Minus Reverse Transcriptase (RT), which is an advanced enzyme derived by in vitro evolution of M-MuLV RT. The enzyme features the highest thermostability among the derivatives of M-MuLV RT and lacks RNase H activity. The Maxima H Minus First Strand cDNA Synthesis Kit allows synthesis of long cDNAs up to 20 kb at elevated temperatures (up to 65°C), superseding other systems' abilities to produce full-length cDNA. Due to increased synthesis rates the reaction can be completed in 30 minutes.