USB 2.0-to-IDE Hot-Swap Enclosure Overview NU410B is a high speed USB application. It provides a solution for low cost, high performance and support USB 2.0 (480mbps) interface. NU410B will bring the convenience of data back up ability by USB interface. Features Small and compact For two 3.5" IDE HDDs USB 2.0 high speed transfer for host connecting External AC adaptor Specifications Host interface: USB 2.0 HDD interface: P-ATA x 2 Data Transfer Rate: 480Mbps Hot-swap: Yes Material: Plastic and Aluminum Alloy Power Supply: External Power Adaptor Cooling: 40mm x 40mm x 10mm Cooling Fan with Thermal Speed Control Dimension Depth............................269mm Width............................86.6mm Height............................141mm