OWC 240GB Aura Pro Solid State Drive & Envoy Storage Solution for MacBook Air 2012 Internal Drive UpgradeKit For 2012 MacBook Air with SSD Drive, Install Tools, and Envoy ProEnclosure for Easy Data Transfer and Original Drive Reuse 240GB useable capacity, Tier 1 Major Multi-Level Cell (MLC) High-Performance Sync-NAND Flash, Sustained Reads 501 MB/s, Sustained Writes 503 MB/s Compatible with: MacBook Air 13-inch (Mid 2012 Model ID:MacBookAir5,2) (2012 Educational Model ID:MacBookAir4,2) MacBook Air 11-inch (Mid 2012 Model ID:MacBookAir5,1) Includes 240GB Aura Pro SSD, Envoy USB 2.0/3.0 Enclosure, Carrying Case, USB3.0 cable (Standard A to Micro B), Pentalobe Compatible Driver, & Torx T-5 Screwdriver, Assembly Manual & User Guide 5 Year OWC Limited Warranty <span class="a-text-bold">DuraWrite</span>extends the endurance of your Solid State Drive (SSD). <span class="a-text-bold">Intelligent Block Management &amp; Wear Leveling</span>automatically distributes data evenly across the entire SSD. <span class="a-text-bold">Intelligent Read Disturb Management</span>spreads the active read/write across the flash components eliminating data corruption caused by constant use. <span class="a-text-bold">Intelligent &#034;Recycling&#034;</span>for advanced free space management gradually re-writes data across the SSD over time to ensure data never gets corrupted. <span class="a-text-bold">RAISE</span>(Redundant Array of Independent Silicon Elements) protects the data on your drive similar to having a RAID setup. <span class="a-text-bold">Best-in-Class ECC Protection</span>for longest data retention and drive life. Reuse the factory SSD via the OWC Envoy as an external storage solution. Take your data with you  Small enough to keep in a pocket or laptop case Easily add additional laptop storage with no AC adapter required. OWC Aura Pro 6G SSD Envoy Pro USB 3.0 bus-powered storage solution Carrying case USB 3.0 (Micro-B to Standard-A) connecting cable Pentalobe compatible driver Torx T-5 driver MacBook Air (13-inch Mid 2012)(June, 2012) Model ID: MacBookAir5,2 (1.8GHz, 2.0GHz) MacBook Air (11-inch Mid 2012)(June, 2012) Model ID: MacBookAir5,1 (1.7GHz, 2.0GHz) MacBook Air (13-inch 2012)Education Model(July, 2012)Model ID:MacBookAir4,2(1.7GHz) MacBook Air (13-inch Mid 2011)(July 2011)Model ID: MacBookAir4,2 (1.7GHz, 1.8GHz) MacBook Air (13-inch Late 2010)(October 2010)Model ID: MacBookAir3,2 (1.86GHz, 2.13GHz) MacBook Air (11-inch Mid 2011)(July 2011)Model ID: MacBookAir4,1 (1.6GHz, 1.8GHz) MacBook Air (11-inch late 2010)(October 2010)Model ID: MacBookAir3,1 (1.4GHz, 1.6GHz)