1TB SSD UNIDAD ESTADO SÓLIDO 2.5"+SLED High Sierra-Catalina Mac Pro 2010-2012(5.1
1TB SSD Solid State Drive. It includes ONE sled. You are buying a 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 Mac OS Catalina 10.15.7.