Enermax Mobile Rack Series for HDD/SSD (EMK5201U3) Patented NSS (Non-scratch SATA) connector Golden finger with loose-cable preventive design SATA 6.0G (SATA III) hard drives compatible 50,000 times HDD plug-in and ejection durability guaranteed 5.25" drive bay designed for a single 2.5 HDD/SSD and single 3.5" HDDSSD 2 USB 3.0 ports via internal 20-pin connector to MB Easy drive plug-in and ejection mechanism Steel clip on SATA data connector to avoid cable removal SATA & SAS HDD Compatible 50,000 times HDD plug and eject guaranteed SATA 6.0G (SATA III) hard drives compatible Easy drive plug-in and ejection mechanism Security key locks