UNIDAD SSD 500GB 2.5"+SLED macOS Sequoia/High Sierra Mac Pro Mid 2010-2012 (5.1)
500GB SSD Solid State Drive. It includes ONE sled. You are buying a NEW professional level hard drive. FORMATTED and optimized ON A MAC TO RUN MAC OS X 10.13.6 High Sierra and a modified version of macOS Sequoia 15.3.1.