We present details of the performance of VCSEL arrays producing cw powers in excess of 80W from a 5mm by 5mm array with power densities greater than 320W/cm2. The power conversion efficiency (PCE) of the arrays was more than 32%. Spectral width of the emission at 976-nm was less than 2-nm FWHM over the entire operating range indicating that the total temperature variation over the array was less than 3 degrees C with all elements driven in parallel. Far field emission was circular with full angle divergence of 13.2 degrees FWHM at 80W.We present details of the performance of VCSEL arrays producing cw powers in excess of 80W from a 5mm by 5mm array with power densities greater than 320W/cm2. The power conversion efficiency (PCE) of the arrays was more than 32%. Spectral width of the emission at 976-nm was less than 2-nm FWHM over the entire operating range indicating that the total temperature variation over the array was less than 3 degrees C with all elements driven in parallel. Far field emission was circular with full angle divergence of 13.2 degrees FWHM at 80W.