Highly recyclable aluminum enclosureMercury-free LED-backlit displayArsenic-free glassBFR-freePVC-free6Meets ENERGY STAR requirementsRated EPEAT Gold7Acoustic PerformanceDECLARED NOISE EMISSIONS in accordance with ISO 9296 Processor and memory1.86GHz Intel Core 2 Duo processor with 6MB on-chip shared L2 cache or optional 2.13GHz Intel Core 2 Duo processor with 6MB shared L2 cacheġ066MHz frontside bus2GB of 1066MHz DDR3 SDRAM onboard (4GB maximum)Storage2Flash Storage128GBFlash Storage256GBEnvironmental Status ReportMacBook Air is designed with the following features to reduce its environmental impact: