Features:Host Interface: 2x 7pin SATA Compatible with any standard external 5.25" device bay Fits 2x 2.5" SATA/SAS HDD/SSD and 1x 3.5" HDD/Device Supports 2.5" SATA/SAS HDD/SSD of 7mm & 9.5mm height Supports SATA 6Gbps or SAS single channel (requires SAS host) Active Power Technology (APT) - only powers up if there is drive installed in the drive bay Soft blue indicator LED provided for each 2.5" HDD/SSD bay Detachable dust cover for 3.5" slot to keep debris from entering your system Enhanced tray and metal housing with for maximum durability ExpressTray Mini system for tool-less, easy installation comparable to tray-less designs Numerous ventilated slots for enhanced cooling Locking latch design for 7 pin SATA connectors Compatible with our lineup of 3.5" mobile racks like the MB991SK-B and MB992SK-B Designed for power users and system builder applications, mainly space saving and hot swap usage and for 2.5" HDD or SSD Drive Fit:Compatible 2.5" Drive Heights: 7mm, 9.5mm 1x 3.5" device or 1 x 3.5" hard drive 2x 2.5" SATA or SAS (single channel) HDD/SSD Device Fit: Single external 5.25" half height device bay Transfer Rate: Up to 6 Gb/sec. (depending on hard drive speed) Power Input: Single 15pin SATA power port Insert& Extract connection Via: Direct SAS/ SATA hard drive connection Structure: Plastic and metal Power Indicator: Solid blue LED HDD Access Indicator: Blinking blue LED Color: Black Dimension (WxLxH): 41.3 x 145.8 x 151.1 mm Weight: 346.3 g Package Contents: Device, user manual, screws