Inner Tray for KF-91-BK & KF-92-BK, SATA Aluminum Black Mobile Rack. Transform your 3.5 inch hard drives into portable storage. The tray is made from high quality aluminum alloy to ensure your drive is 100% protected. This 3.5" SATA Mobile Rack Tray by Kingwin sports a shock absorber system to protect your drive from damage caused by accidental bumps and falls. With Kingpin's SATA mobile rack tray, you can now bring your data anywhere you want to with no worries. The tray supports 3.5" SATA hard drives from all major brands.