Lexar gold Series Professional 1800x 64gB UHS-II U3 SDXc Memory card, 2-Pack2x Lexar gOLD Series Professional 1800x 64gB UHS-II U3 SDXc Memory card - Lexar Lifetime Limited Warranty High-speed performance - rated UHS Speed class 3 (U3) and Video Speed class 60 (V60) for your Professional DSLR and mirrorless cameras Leverages UHS-II technology to deliver read speeds up to 270MB s capture high-quality images and extended lengths of Full-HD and 4K video with write speeds up to 180MB s Designed for durability Product Dimensions: 5.5 x 4 x 0.21 inches Item Weight: 5.6 ounces Professional-level performance to meet your needsDesigned for your DSLR or mirrorless cameras, the Lexar Professional 1800x SDXc UHS-II card gOLD Series lets you quickly capture and transfer high-quality photos and stunning Full-HD and 4K video with speeds up to 270MB s read. With the latest UHS-II technology and Video Speed class 60 (V60) rating, this card dramatically accelerates your workflow from start to finish