Features: Supports 2.5/3.5inch ide hard disk or opticaled drive strong compatibility with ide hard disk. Support three hard disk at the same time, the transmission not interfere with each other to achieve a variety of fast transfer needs. Note: When using 3 disks or 2 IDE hard disks at the same time, you need to set the mastered and slave disks, otherwise it can not be used. Protecting data more secure for the installation of high performances chip, comprehensively enhances the stability and endurances of the transmission operation of the 3 disks at the same time still smooth. External power supply strong power supply large-capacity hard disk stable reading with 12V2A power adapter and 4Pin power cord, stable power supply to protect large-capacity hard disk data stable reading. Specifications: Product material: ABS plastic Support hard drive: 2.5inch/3.5inch ide hard drive/opticaled drive Appearance size: about 83mmx53mmx15mm/3.27x2.09x0.59in Power supply: 12V2A power adapter and 4Pin power cable Support interfaces: ide and Data cable interfaces: USB3.0 Package Includes: 1PC USB3.0 Converter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.