Icy Dock introduces the FatCage MB155SP-B, a 5-in-3 SATA 6 Gbps hot swappable internal RAID backplane cage. This is the lite version of the MB45X series by removing the monitoring features, increasing the cooling performance, and reducing the overall cost, while keeping the same 3 year warranty and the core tray system for hot swapping and maintenance are kept for the best reliability in the market. The MB155SP-B built to be a lighter module, while more importantly maintaining the same level of quality, build, and service you'd expect from an Icy Dock product. While the design has gone through some changes, the space saving design is still established. The backplane module allows up to a massive 5 x 3.5" SATA III hard drives, while only consuming three 5.25" bays. The FatCage has also been redesigned for the type of power connector accepted. 15 pin SATA power is used to provide better accessibility for most modern host systems. They are also compatible with cables with metal latches to improve security when installed into a system. High-Octane Airflow Along with being a lighter package, the cooling has been redesigned to provide the utmost airflow to your hard drives. The FatCage uses a full metal body that allows for the effective heat dissipation possible in various types of applications. Meanwhile, our enhanced direct air flow design allows the included a large 92mm cooling fan to raise its efficiency to cool down your hard drives, by closing and rerouting most vents to route incoming air directly to the cooling fan. There are dual exhaust vents on the top and bottom to additionally help keep drives temperatures while improve airflow. In addition, the backplane logic PCB has larger cut outs in key locations to allow more air to flow into and exit the MB155SP-B, making it an ideal system to store and cool your hard drives. Modularized Cooling System The included 92mm cooling fan is fully modularized for the most hassle free experience of replacing and maintaining and is compatible with most aftermarket cooling fans of the same size. To expand the range of compatible fans, both 2 and 3 pin fan power ports are available and are conveniently located for great accessibility. This provides the user the most flexible options available and freedom desired. The FatCage MB155SP-B features a 3 mode fan speed jumper which can be changed at will to control the fan speed easily. The 3 modes include: High, Low and Off with respective speeds of 100%, 60% and 0% relative to maximum output. The settings can be simply changed by removing the jumper and relocating into the desired setting. Reliable Hot Swap System The MB155SP-B has kept the same interchangeable EZ-Tray used in MB45X, MB876, MB559, and MB561 series. This allows you to continue to use the same trays from these series, or our compatible external 3.5" models without any issues regarding switching to new designs. The EZ-Tray accepts most 3.5" SATA hard drives and is very easy to install / remove to the device in two steps - press the release button and pull / push the lever. The built in rail system acts as the mechanism to ensure a fully secured connection every time. This allows for easy replacement in case of RAID failure or transporting of data. Key Features: 5 in 3 RAID backplane module. Fits five 3.5" SATA I / II / III (SATA 6Gbps) hard drives in three 5.25" device bay & fully supports SATA Hot-Swap function. Large 92mm cooling fan with full metal body for excellent heat dissipation for the most intense applications. Compact and space saving to fit multiple drives. Interchangeable EZ-Tray tray design for internal drive security, exchangeability, expandability and maintenance capabilities. Compatible with DataCage Classic MB45X, ICYBento MB559 & ICYCube MB561 series. Enhanced Direct Air Flow Design - Shuts off most vents while adding larger ventilation slots on the backplane PCB. Uses SATA 15 power ports for best compatibility with the newest power supplies. Individual LED hard drive power & activity status notification. Active Power Technology (APT) - individual led & cooling fan only powers up if there is a drive installed in the bay. 3 Mode Fan Speed Jumper of high / low / off (100%, 60%, 0%). Fully Modularized rear outtake cooling fan for easy maintenance or aftermarket replacement with 2 and 3 pin power ports available. ICY DOCK 3 year warranty equivalent to hard drive manufacturer warranty to ensure maximum reliability and long life. For more information, visit the product page.