<br>Note: without memory stick<br><br>Product Overview<br><br>This Thunderbolt 2 SSD enclosure is a high-performance storage expansion solution designed specifically for 20112015 iMac models. It is also widely compatible with all Mac computers equipped with Thunderbolt 1 and Thunderbolt 2 ports, providing users with a convenient and efficient storage upgrade option.<br><br><br><br>Product Advantages<br><br>Plug-and-Play: Features advanced plug-and-play technology for easy operation, allowing users to start using it quickly without complex installation procedures.<br><br>No Disassembly Required: Compatible with mainstream M.2 NVMe SSDs (2230, 2242, 2280). Upgrading your storage does not require opening your iMac, significantly improving data read/write speeds and overall performance. However, the operating system must be installed on the external SSD, reducing the risk of hardware damage from disassembly.<br><br>Wide Compatibility: Works with all Mac models equipped with Thunderbolt 1 and Thunderbolt 2 ports, including MacBook Air, MacBook Pro, iMac, Mac Mini, and Mac Pro.<br><br>Technical Specifications<br><br>Parameter Specification<br><br>Interface Type Thunderbolt 2 (compatible with Thunderbolt 1)<br><br>Transmission ProtocolPCIe 3.0/4.0<br><br>Supported SSD Type M.2 NVMe SSD (2230, 2242, 2280)<br><br>Maximum Transfer Speed 20Gbps (theoretical)<br><br>Actual Read/Write Speed 850MB/s+ (varies by Mac model)<br><br>System Requirements macOS 10.13 or later<br><br>iMac Storage Speed Reference (Mid 2011 Mid 2015)<br><br>Internal HDD: ~100200MB/s<br><br>Internal 2.5-inch SSD: ~250500MB/s<br><br>Apple Original SSD: ~250700MB/s<br><br>External USB 3.0 SSD: ~250450MB/s<br><br>External Thunderbolt 2 SSD: Up to 857MB/s (tested on Late 2015 iMac A1419, actual performance may vary depending on device and testing conditions)<br><br>Compatible Devices<br><br>MacBook Air<br><br>11-inch A1370 (Mid 2011) EMC: 2471<br><br>13-inch A1369 (Mid 2011) EMC: 2469<br><br>11-inch A1465 (Mid 2012 Early 2015) EMC: 2558, 2631, 2924<br><br>13-inch A1466 (Mid 2012 2017) EMC: 2559, 2632, 2925, 3178<br><br>MacBook Pro<br><br>13-inch A1278 (Early 2011 Mid 2012) EMC: 2419, 2555, 2554<br><br>15-inch A1286 (Early 2011 Mid 2012) EMC: 2353, 2417, 2563, 2556<br><br>13-inch Retina A1425 &amp; A1502 (Late 2012 Early 2015) EMC: 2557, 2672, 2678, 2875, 2835<br><br>15-inch Retina A1398 (Mid 2012 Mid 2015) EMC: 2512, 2673, 2674, 2745, 2876, 2881, 2909, 2910<br><br>iMac<br><br>21.5-inch A1311 (Mid 2011) EMC: 2428<br><br>27-inch A1312 (Mid 2011) EMC: 2429<br><br>21.5-inch A1418 (Late 2012 Late 2015) EMC: 2544, 2638, 2805, 2889, 2833<br><br>27-inch A1419 (Late 2012 Late 2015) EMC: 2546, 2639, 2806, 2834<br><br>Mac Mini<br><br>A1347 (Mid 2011 Late 2014) EMC: 2442, 2570, 2840<br><br>Mac Pro<br><br>A1481 (Late 2013) EMC: 2630<br><br>Troubleshooting Guide<br><br>All Thunderbolt 2 SSD enclosures are tested with an SSD installed before shipping to ensure proper functionality. If your device is not recognized, follow these steps:<br><br><br><br>Check macOS Version: Ensure that your macOS version is 10.13 or later. If it&#39;s lower, update your system.<br><br>Reconnect the Cable: Thunderbolt ports may accumulate dust or oxidize over time. Try unplugging and reconnecting multiple times or using a different port.