MyFi™ has been developed to give reliable amplification of targets up to 10 kb from challenging and complex targets. MyFi shows improved tolerance to PCR inhibitors, thereby enabling reliable detection from samples from which DNA is difficult to purify. Furthermore a unique buffer system and enzyme blend promote highly sensitive amplification, ideal for low-copy number targets. The proofreading ability of MyFi allows all PCR products to be cloned. The inclusion of MyTaq HS means MyFi Mix generates PCR products with 3’-A overhangs, which is perfect for TA cloning. MyFi Mix has the added convenience of room temperature reaction assembly, to avoid non-specific amplification and primer-dimer formation. MyFi Mix is supplied as a mastermix that requires the addition of only template, primers and water, thereby reducing the number of pipetting steps during PCR set-up, for improved speed, throughput and assay reproducibility. The inclusion of dNTPs, MgCl2 and enhancers at optimal concentrations, helps eliminate the need for optimization, thereby saving on time, cost and making MyFi Mix well suited to automation.