OWC 1.0TB Aura 6G SSD and Envoy Pro Upgrade Kit for 2012-2013 MacBook Pro with Retina Display. 960GB useable capacity, tier-1 MLC NAND flash, Sustained Reads 560 MB/s, Sustained Writes 460 MB/s Designed First and Best for your Mac. No Software or Hacks needed - 100% compatible with all Mac OS Versions including Yosemite 10.10.x Compatible with MacBook Pro with Retina display 2012 & early 2013. Model ID#s: MacBookPro10,1 | MacBookPro10,2 Includes 1.0TB Aura SSD, Envoy Pro USB 3.0 Enclosure, Torx T-5 screwdriver, and a Pentalobe compatible driver 3 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. Upgrade your rMBP&#039;s factory installed SSD with greater performance and capacity via the Aura. Retask the replaced factory SSD as a bus-poweredpocket-sized external storage solution via the Envoy Pro. OWC Aura 6G SSD OWC Envoy Pro USB 3.0 bus-powered storage solution Carrying case High-quality double-shielded connecting cable:USB 3.0 (Micro-B to Standard-A) Pentalobe compatible driver Torx T6S security driver Torx T-5 Screwdriver Bus-poweredvia USB 3.0 port (no AC adapter required) Complements rMBP design, anodized aluminum finish Super-quiet, fanless operation Non-skid rubber feet 2.125 in (W) x 4.5 in (D) x .4375 in (H) 53.98 mm (W) x 114.3 mm (D) x 11.11mm (H) 3.4 ounces (empty case, no drive installed) 960GB useable capacity.Total Flash Memory Components  1024GB.64GB allocated to real-time data redundancy &amp; error correction 894GiB Tier 1 Major Multi-Level Cell (MLC) High-Performance Sync-NAND Flash Silicon Motion SM2246EN Processor with 7% Over Provisioning Standard up to 32 commands OWCSSDA12R960 Yes Unformatted 560MB/s 460MB/s Up to 74,000 IOPS Up to 73,000 IOPS less than 0.1ms less than 0.1ms ECC Recovery: Up to 55 bytes correctable per 512-byte sector Chip Based Data Encryption: 256-bit AES-compliant OS Dependent Less than 1 sector per 10^16bits read