Fits desktop PC 3.5" Floppy Bay Include 5.25" DVD ROM mounting kit 3 x USB 3.0 Super Speed Downstream Port Built-in SD/SDHC/MS/ MS Pro /MS Duo card reader Power Indicator USB 3.0 specification rev. 1.0 compliant USB 2.0 specification rev. 2.0 compliant Supports Super Speed 5 Gb/s, High-Speed 480 Mb/s, Full-Speed & Low-Speed, Max. 5 Gb/s USB transfer rate ( This must be connected to a USB 3.0 host port to get USB 3.0 speed ) Direct Power from PC Power Supply to each USB Port Plug & Play No drivers need for Windows ( You must have USB 3.0 host port installed ) , & Linux Metal Case Color Available : Black panel Connectors : Type A USB 3.0, 4 Pin Power connector to Power Supply, Free 20 pin to 2 x type A adapter included 1 x SE-USB3-ICR-HUB-31 1 x 20 Pin to 2 x Type A adapter 4 x Mounting screws 1 x 5.25" DVD ROM mounting bracket 4x 3.5" to 5.25" mounting kit screws Check out my other items!