A safety eyeglass case is provided having a mounting means for use with a power tool with an elongated central shaft. Specific solutions are as follows. The memory device further comprises control logic to configure, for an access to the bit cell, the state of the first word line and the state of the second word line based on an access type of the access. The first clamping portions engage with the second clamping portions to fix the fan duct and the heat sink onto the mounting frame.