Usage
Drive bays are most commonly used to store disk drives, although they can also be used for front-end USB ports, I/O bays, card readers, fans, fan controllers, tool storage, and other uses. Some computers have a small system monitor LCD mounted in a drive bay.
When installing a drive in a bay, it is usually secured with 4 screws that hold the drive in the bay, although toolless fasteners are becoming more common. Then, any necessary power, data transfer, and other cables are routed into and connected to the rear of the drive. The drive bay is usually just big enough for the drive to fit inside. Since computers have 12 volt rails on their motherboards, some computer hobbyist websites even sell addons for cigar lighter receptacles to power or recharge devices made to power from automobiles, though USB is already available for charging devices like cell phones and portable media players.
Drive bay-compatible computer case accessories that do not connect to the motherboard or power supply at all are also common, such as small storage drawers or even cup holders.
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