Standard 5.25 -inch CD-ROM bay form factor, fits most ATX/MATX desktop chassis firmly; 7 independent USB 3.0 ports support simultaneous connection of multiple peripherals; Comes with matched 19-pin motherboard header to Type-A male internal cable for easy wiring; Up to 5Gbps transmission speed, ideal for external SSDs, flash drives and hard disks; Front-panel accessible design, plug-and-play without drivers for Windows & macOS