Bay RAM Five is a very high-speed solid-state data storage device with 4 independently controlled banks of 4 DDR3 SO-DIMM sockets per bank, 4 industry-standard SATA data connectors, and one 12V input DC power connector, all housed within an enclosure compatible with 5.25″ drive bays found in common PC chassis. The 4 controllers are independently switched with jumper blocks, allowing backward- and forward-compatibility with SATA chipsets and add-on controllers transmitting data at various speeds. A separate jumper switches the device's firmware from the 8 b/10 b “legacy frame” to the 128 b/130 b “jumbo frame” now in the PCI-Express 3.0 specification. The 5.25″ enclosure has room for 3 40×40 mm cooling fans, either 20 mm or 10 mm thick: fans are powered by 3 fan headers integrated onto the PCB, or a separate power supply installed in the PC chassis.