Transcend 240GB JetDrive 420 SATA III SSD Upgrade Kit for MacBook (TS240GJDM420) Compatible with MacBook, MacBook Pro, and Mac Mini (Late 2008  Mid 2012) Next-generation SATA III 6Gb/s interface Free download of Jet Drive Toolbox SSD monitoring software External enclosure is fully compatible with SuperSpeed USB 3.0 and Hi-Speed USB 2.0 SSD upgrade kit included Operating Temperature 32F-158F Repurpose original SSD into external SSD Dual color LED indicator (Power, data transfer and USB 3.0/2.0 connection) Upgrading JetDrive 421 to Mac mini requires additional tools.