? Compatible with Mac Pro 2008-2012 models with no driver required ? Fits 1x SATA hard drive or SSD from 7mm to 9.5mm in height ? Uses PCIe 2.0 x1 interface, also supports installation into PCIe 2.0 and PCIe 3.0 x1, x4, x8, and x16 slots ? Installs into single-width PCIe expansion slot ? PCIe interface provides both power and data transfer which ultimately reduce cable clutter ? Narrow design allows for multiple bays to be installed side-by-side in a modular design ? Includes full-height PCIe faceplate to protect against buildup of dust ? Strong hot-swap connector rated for a minimum of 10,000 insertion/removal cycles ? Eagle-hook lock system keeps the drive secure in the enclosure ? EMI Grounding ? protects hard drives from electrical damage ? Anti-Vibration Technology (AVT) reduces noise and protects against environmental damage ? Active Power Technology (APT) saves power by shutting the device down when no drive is installed.