Features: Install two 2.5 inch HDD or SSD on 3.5 inch floppy disk driver bay, expand computer case storage space, change idle floppy drive bay to hard disk slot. Standard SATA interface, the theoretical transmission speed up to 6Gbps, support hot plug. Adopt safety lock to ensure that the hard disk does not eject automatically, effectively protect hard disk safety. Tool-free design, easy to install and remove the hard disk. Metal frame, solid and durable, stable performance. Equipped with LED indicator light to monitor hard disk read and write status at any time. Specification: Type: 2.5 inch dual-slot hard disk case Material: Metal+Stainless steel Transmission interface: SATA Supported hard disk type: 2.5 inch HDD/SSD Supported hard disk quantity: 2 Applicable space: 3.5 inch floppy disk driver bay Maximum hard disk height: 9.5mm Host interface: 2*SATA 7Pin Power interface: 2*SATA 15Pin Packing list: 1 * Hard disk rack 2 * SATA power cable 2 * Key 4 * Screw 1 * User manual Note: The product does not contain hard disk.