OWC 240GB Aura Pro 6G Solid-State Drive for 2010-2011 MacBook Air 240GB 6G SSD Flash Internal Drive Upgrade For MacBook Air 2010 - 2011 240GB useable capacity Total Flash Memory, Tier 1 Multi-Level Cell (MLC) NAND Flash Memory, Sustained Reads (up to) 507MB/s, Sustained Writes (up to) 454MB/s High performance internal MLC flash storage with 7% over provisioned redundancy Compatible with: MacBook Air 13-inch (Mid 2011 Model ID:MacBookAir4,2) (Late 2010 Model ID:MacBookAir3,2) MacBook Air 11-inch (Mid 2011 Model ID:MacBookAir4,1) (Late 2010 Model ID:MacBookAir3,1) 5 Year OWC Limited Warranty