Rosewill RX-C202 3.5" SATA Trayless Hot Swap Mobile Rack for Dual 2.5" SATA SSD/HDD SUPPORTS DUAL 2.5-INCH SATA SSDS OR HDDS: The Rosewill RX-C202 enables two 2.5-inch SATA drives or SSD to be installed into any free 3.5-inch drive bay without the need of tray, caddy, or carrier. CONVENIENT DESIGN: The tool-free SSD/HDD installation feature enables quick and easy replacement/removal of drives. The hot-swap function allows you to replace your hard drive without shutting down the system. DURABLE STRUCTURE: Its stainless steel structure brings tough, reliable hard drive protection. The durable SATA connector with unique design supports over 50,000 times hot swap. Tool-free SSD/HDD installation Super durable SATA connector (over 50,000 times hot swap)